Bamboo charcoal powder-based false eyelash and manufacturing process thereof

Abstract

To provide a bamboo charcoal powder-based false eyelash and a manufacturing process thereof.SOLUTION: A bamboo charcoal powder-based false eyelash is obtained by uniformly mixing 90-96 mass% of polyester particles, 3-8 mass% of a bamboo charcoal powder and 1-2 mass% of an auxiliary agent, and then thermally melting, draw-forming and cooling the mixture. The false eyelash allows the tip part to be chemically or physically polished, is greatly reduced in weight, and is environmentally friendly. An organosilicon quaternary ammonium salt structure and three chlorine atoms of the auxiliary agent synergistically exhibit antibacterial actions, and moreover, a long carbon chain of the quaternary ammonium salt further improves the antibacterial action. The auxiliary agent promotes the dispersion of the bamboo charcoal powder, and the bamboo charcoal powder promotes the miscibility and bonding of the auxiliary agent and the matrix resin, and the antibacterial action of the false eyelash is improved by the synergy therebetween. The false eyelash has excellent antibacterial and anti-inflammatory actions, protects the skin around the eyes from damage due to the external environment, and can give both beautiful appearance and very high safety.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention belongs to the technical field of cosmetics, and specifically relates to false eyelashes based on bamboo charcoal powder and its manufacturing process.

Background Art

[0002] Eyelashes grow on the front part of the eyelid margin and have a protective function. False eyelashes are artificial eyelashes for beautifying the eyes. Usually, by making the eyelashes longer or thicker, the eyes can be made to look plump and lively. As materials for manufacturing false eyelashes, chemical fiber materials, hair, etc. can be mentioned. False eyelashes made of different materials show different effects and also have different safety levels. .

[0003] In the prior art, there is extremely little research on the safety of false eyelashes. With the improvement of people's quality of life, the safety requirements for false eyelashes are becoming increasingly high. The rich minerals and various trace elements contained in bamboo charcoal powder have antibacterial and anti-inflammatory effects. When used for false eyelashes, they can help protect the sensitive skin around the eyes. In the prior art, there is almost no research on using bamboo charcoal powder for false eyelashes. Therefore, it is urgent to design false eyelashes based on bamboo charcoal powder so that they can meet people's needs. .

Summary of the Invention

[0004] The present invention aims to overcome the deficiencies of the prior art and provide false eyelashes based on bamboo charcoal powder and its manufacturing process.

Means for Solving the Problems

[0005] The object of the present invention can be achieved by the following technical solutions.

[0006] A false eyelash based on bamboo charcoal powder, comprising, as raw materials, 90-96% by mass of polyester particles, 3-8% by mass of bamboo charcoal powder, and 1-2% by mass of an auxiliary agent. Furthermore, the polyester particles are one of polyethylene terephthalate particles, polybutylene terephthalate particles, and polyarylate particles. Furthermore, the bamboo charcoal powder is produced by a step of adding 2 g of bamboo charcoal and 200 mL of nitric acid with a mass fraction of 65% to a 500 mL three-necked flask, heating to 80 °C, refluxing and stirring for 6 h, cooling to room temperature, filtering, washing the filtrate with deionized water until neutral, and drying the cake at 110 °C for 12 h to obtain bamboo charcoal powder. Furthermore, the bamboo charcoal powder is 25000 mesh.

[0007] Furthermore, the auxiliary agent is: Step S1: Under the protection of nitrogen at room temperature, add 3-isocyanatopropyltriethoxysilane, 3-chloro-1-propanol, and N,N-dimethylamide to a three-necked flask, stir uniformly, then add triethylamine, heat to 75 °C while stirring, and react at 75 °C for 3 h with sufficient stirring, then cool to room temperature and perform vacuum distillation to obtain intermediate 1. The usage ratio of 3-isocyanatopropyltriethoxysilane, 3-chloro-1-propanol, triethylamine, and N,N-dimethylamide is 12.4 g:5 mL:3 mL:50 mL. Under the action of triethylamine, which is an organic amine catalyst, the isocyanate group of 3-isocyanatopropyltriethoxysilane and the hydroxy group of 3-chloro-1-propanol undergo an addition reaction.

[0008]

[0009] ​​​​​​​​​​​​The reaction process consists of the steps shown below, TIFF2025091329000001.tif19117S2, at room temperature and under nitrogen protection, add intermediate 1 and dimethyl sulfoxide to a four-necked flask , stir well until uniformly mixed, then heat to 40 °C, and further use a constant-pressure separatory funnel to slowly add N,N-dimethylmyristylamine, then heat to 50 °C , react with stirring at 50 °C for 8 h, then cool to room temperature, and distill under reduced pressure to remove most of the solvent , purify by column chromatography (select a mixed solvent of cyclohexane and ethyl acetate as the eluent, and the volume ratio of cyclohexane to ethyl acetate is 8:2), distill under reduced pressure to remove the eluent to obtain intermediate 2. The ratio of the usage amounts of intermediate 1, N,N-dimethylmy ristylamine and dimethyl sulfoxide is 8.5 g:8 mL:50 mL , and the -Cl of intermediate 1 and the tertiary amine of N,N-dimethylmyristylamine undergo a quaternary ammonium reaction under heating conditions to form a quaternary ammonium salt. The reaction process consists of the steps shown below, and TIFF2025091329000002.tif18134S3, add intermediate 2, triclosan and tetra-isopropoxytitanium to a two-necked flask containing toluene , react at 90 °C for 24 h, then cool to room temperature, wash the reaction product twice with tartaric acid , then wash three times with sodium bicarbonate solution, dry the organic phase with anhydrous magnesium sulfate , filter, distill under reduced pressure, purify by column chromatography (use a mixed solvent of chloroform and ethyl ether as the eluent, and the volume ratio of chloroform to ethyl ether is 9:1), and finally, distill under reduced pressure again to remove the eluent to obtain the auxiliary agent. It is produced by and . The ratio of the usage amounts of intermediate 2, triclosan, tetraisopropoxytitanium and toluene is 9.3 g: 4.6 g: 0.018 g: 60 mL.

[0010] Under the action of tetraisopropoxytitanium as a catalyst, the silyloxy group of intermediate 2 and the hydroxy group of triclosan undergo a chemical reaction, and the reaction process is shown below. TIFF2025091329000003.tif17115

[0011] The auxiliary agent molecule contains an organosilicon quaternary ammonium salt structure, and the organosilicon quaternary ammonium salt structure has an excellent bactericidal effect against Staphylococcus aureus and Escherichia coli. The reason is that the cations in the organosilicon quaternary ammonium salt structure are adsorbed onto the negatively charged bacterial cells by electrostatic force and hydrogen bonding, and hydrophobic bonding occurs between the surfactant and protein. The organosilicon quaternary ammonium salt causes a steric effect on the bacteria, and the interaction between the surfactant molecule and protein changes the permeability of the bacterial membrane, thereby changing the cell structure, rupturing the cells, and killing the bacteria. The antibacterial property of the quaternary ammonium salt is also related to the long alkyl chain of the quaternary ammonium salt. When the number of carbon atoms in the alkyl chain of the quaternary ammonium salt is 14, the antibacterial performance of the quaternary ammonium salt antibacterial agent is the highest. Therefore, the long carbon chain (14 carbon atoms) improves the antibacterial property of the auxiliary agent. The auxiliary agent molecule further contains three chlorine atoms. Since chlorine atoms have high oxidizing property and electron affinity, when the auxiliary agent contacts bacteria and fungi, the chlorine atoms react with the cell lipid molecules of the cell membrane, resulting in the destruction of the cell membrane and the improvement The important substances cannot be normally exchanged, the cells are hindered, and ultimately the bacteria and fungi die and exhibit a synergistic effect with the organosilicon quaternary ammonium salt to improve the antibacterial property of the auxiliary agent The auxiliary agent structure further contains a silyloxy group, and the silyloxy group can form a chemical bond with the hydroxyl group on the surface of the bamboo charcoal powder to form a chemical force, thereby promoting the high dispersion of the bamboo charcoal powder and enabling the antibacterial and anti-inflammatory effects of the bamboo charcoal powder containing abundant minerals and various trace elements to be exerted. In addition, the acid-treated bamboo charcoal powder contains a large number of carboxyl groups and hydroxyl groups, which can generate a chemical force with the unreacted hydroxyl groups and carboxyl groups at the ends of the matrix particles Therefore, the bamboo charcoal powder further promotes the compatibility and bonding with the auxiliary agent and the matrix particles, thereby exerting the antibacterial effect of the auxiliary agent. In addition, the auxiliary agent molecule further contains groups such as a benzene ring, an ester group, and an amide group. Similar substances dissolve with each other, so the auxiliary agent can be well compatible with the matrix particles and further exert the antibacterial effect sufficiently and stably

[0012] A manufacturing process of false eyelashes based on bamboo charcoal powder, which includes the step of uniformly mixing raw materials in proportion and then performing hot melting, stretching and forming, and cooling to obtain false eyelashes based on bamboo charcoal powder

Advantages of the Invention

[0013] The beneficial effects of the present invention are that the false eyelashes of the present invention can be chemically polished or physically polished at the tip part, the weight is significantly reduced, and it is environmentally friendly. The organosilicon quaternary ammonium salt structure and three chlorine atoms in the auxiliary agent of the present invention act synergistically to exert an antibacterial effect, and the long carbon chain (carbon ​​​​​​​​​​​The prime number 14) further improves the antibacterial effect, and the auxiliary agent promotes the dispersion of bamboo charcoal powder. The bamboo charcoal powder promotes the compatibility and combination of the auxiliary agent and the matrix particles. Due to the synergistic effect of both, the antibacterial property of the false eyelashes is improved. Therefore, the false eyelashes produced by the present invention have excellent antibacterial and anti-inflammatory effects, can well protect the skin around the eyes from harm caused by the external environment, and have both aesthetic appearance and very high safety.

Embodiments for Carrying Out the Invention

[0014] Hereinafter, with reference to the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present invention.

[0015] Example 1 An auxiliary agent was manufactured, and the specific steps were as follows.

[0016] S1. Under the protection of nitrogen at room temperature, 12.4 g of 3-isocyanatopropyltriethoxysilane, 5 mL of 3-chloro-1-propanol and 50 mL of N,N-dimethylamide were added to a 100 mL three-necked flask, uniformly stirred, then 3 mL of triethylamine was added, and the temperature was raised to 75 °C while stirring. After reacting with sufficient stirring at 75 °C for 3 h, it was cooled to room temperature and distilled under reduced pressure to obtain intermediate 1.

[0017] S2. Under the protection of nitrogen at room temperature, 8.5 g of intermediate 1 and 50 mL of dimethyl sulfoxide were added to a 100 mL four-necked flask, stirred sufficiently until uniformly mixed, and then the temperature was raised to 40 °C ​​​​​​​Next, 8 mL of N,N-dimethylmyristylamine was slowly added using a constant-pressure separatory funnel. After that, the temperature was raised to 50 °C, and the reaction was carried out with stirring at 50 °C for 8 h, followed by cooling to room temperature. Then, it was distilled under reduced pressure and purified by column chromatography (selecting a mixed solvent of cyclohexane and ethyl acetate as the eluent, and the volume ratio of cyclohexane to ethyl acetate was 8:2). ) After distillation under reduced pressure, intermediate 2 was obtained. ) After distillation under reduced pressure, intermediate 2 was obtained.

[0018] S3: 9.3 g of intermediate 2, 4.6 g of triclosan, and 0.018 g of tetra-isopropoxytitanium were added to a 100 mL two-necked flask containing 60 mL of toluene, and the reaction was carried out at 90 °C for 24 h. After that, it was cooled to room temperature, and the reaction product was washed twice with 5 wt% tartaric acid and then three times with 5 wt% sodium bicarbonate solution. The organic phase was dried over anhydrous magnesium sulfate, filtered, distilled under reduced pressure, and purified by column chromatography (using a mixed solvent of chloroform and ethyl ether as the eluent, and the volume ratio of chloroform to ethyl ether was 9:1). Finally, it was distilled under reduced pressure again to remove the eluent, and an auxiliary agent was obtained. Finally, it was distilled under reduced pressure again to remove the eluent, and an auxiliary agent was obtained. Finally, it was distilled under reduced pressure again to remove the eluent, and an auxiliary agent was obtained. Finally, it was distilled under reduced pressure again to remove the eluent, and an auxiliary agent was obtained.

[0019] Example 2 An auxiliary agent was manufactured, and the specific steps were as follows.

[0020] An auxiliary agent was manufactured in the same manner as in Example 1 except that step S3 of Example 1 was removed.

[0021] Example 3 Bamboo charcoal powder was manufactured, and the specific steps were as follows.

[0022] 2 g of bamboo charcoal and 200 mL of nitric acid with a mass fraction of 65% were added to a 500 mL three-necked flask, and the temperature was raised to 80 °C. After reflux stirring for 6 h, it was cooled to room temperature, then filtered, and the filtrate was filtered until it became neutral. It was washed with deionized water, and the cake was dried at 110 °C for 12 h to obtain bamboo charcoal powder.

[0023] Example 4 False eyelashes were manufactured, and the specific steps were as follows.

[0024] 90% of polyarylate particles, 8% of the bamboo charcoal powder of Example 3, and 2% of the auxiliary agent of Example 1 were uniformly mixed After that, it was melt-molded, stretched, and cooled to obtain false eyelashes based on bamboo charcoal powder.

[0025] Example 5 False eyelashes were manufactured, and the specific steps were as follows.

[0026] 96% of polyethylene terephthalate particles, 3% of the bamboo charcoal powder of Example 3, and 1% of the auxiliary agent of Example 1 were uniformly mixed, and then melt-molded, stretched, and cooled to obtain false eyelashes based on bamboo charcoal powder.

[0027] Example 6 False eyelashes were manufactured, and the specific steps were as follows.

[0028] 94% of polybutylene terephthalate particles, 4.5% of the bamboo charcoal powder of Example 3, and the auxiliary agent of Example 1 1.5% were uniformly mixed, and then melt-molded, stretched, and cooled to obtain false eyelashes based on bamboo charcoal powder was obtained.

[0029] Comparative Example 1 False eyelashes were manufactured, and the specific steps were as follows.

[0030] Except that the auxiliary agent of Example 6 was replaced with the auxiliary agent of Example 2, false eyelashes based on bamboo charcoal powder were manufactured in the same manner as in Example 6. were manufactured.

[0031] Comparative Example 2 False eyelashes were manufactured, and the specific steps were as follows.

[0032] After uniformly mixing 95% of polybutylene terephthalate particles and 5% of the bamboo charcoal powder of Example 3, it was hot-melted, stretch-formed, and cooled to obtain false eyelashes based on bamboo charcoal powder.

[0033] An antibacterial test was conducted on the auxiliary agent of Example 1, and the test results were shown in the following table.

[0034] TIFF2025091329000004.tif57154

[0035] As can be seen from the data in the above table, the auxiliary agent produced in the examples of the present invention has excellent antibacterial effects . Therefore, when the auxiliary agent of the present invention is used for false eyelashes, it exerts a synergistic effect with the bamboo charcoal powder, and can significantly improve the antibacterial and anti-inflammatory effects of false eyelashes, making it safer and more reassuring to use, and thereby enabling false eyelashes to meet people's needs in both safety and aesthetics. In the description of the specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc.

[0036] mean that the specific features, structures, materials, or characteristics described with reference to the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. And the specific features, structures, materials, or characteristics described may be appropriately combined in any one or more embodiments or examples.

[0037] The above content is only examples and descriptions about the present invention, and those skilled in the art can make various changes or supplements to the described specific embodiments or replace them in a similar way, without departing from the invention.

[0037] ​​or as long as it does not exceed the scope defined in the claims of the present patent, it shall belong to the protection scope of the present invention shall be taken as such.

Claims

1. Bamboo charcoal powder-based false eyelashes, made from polyester particles (90-96 quality) %, bamboo charcoal powder 3-8% by mass, auxiliary agent 1-2% by mass, The auxiliary is S1: At room temperature, under the protection of nitrogen, 3-isocyanatopropyltriethoxysilane, 3-chloro-1 2-propanol and N,N-dimethylamide were added to the flask, stirred, and then triethylamine was added. The mixture was added with ethanol, heated to 75° C., reacted for 3 hours, cooled to room temperature, and distilled under reduced pressure to obtain intermediate 1. and S2. At room temperature, under the protection of nitrogen, add intermediate 1 and dimethyl sulfoxide to a flask and stir. The mixture was heated to 40°C while stirring, and N,N-dimethylmyristylamine was added. The mixture was then heated to 50°C. The mixture was heated and reacted for 8 hours, cooled to room temperature, distilled under reduced pressure, and purified by column chromatography. distillation under reduced pressure to obtain intermediate 2; S3, intermediate 2, triclosan and tetraisopropoxytitanium were mixed in a flask containing toluene. Add to Lasco, react at 90°C for 24 hours, cool to room temperature, wash off the tartaric acid, and then add carbonate. The sodium bicarbonate solution was washed, dried, filtered, distilled under reduced pressure, and purified by column chromatography. and then subjecting the mixture to reduced pressure distillation to obtain an auxiliary agent. Charcoal powder based false eyelashes.

2. Step S1: 3-isocyanatopropyltriethoxysilane, 3-chloro-1-propanol The ratio of the amounts of triethylamine and N,N-dimethylamide used was 12.4 g: 5 mL: 3 mL.

2. The bamboo charcoal powder-based false eyelashes according to claim 1, characterized in that the volume is 50 mL.

3. Step S2: Use of intermediate 1, N,N-dimethylmyristylamine and dimethyl sulfoxide 2. The bamboo charcoal powder according to claim 1, wherein the dosage ratio is 8.5g:8mL:50mL. False eyelashes based on the tip.

4. Step S3: Use of intermediate 2, triclosan, tetraisopropoxytitanium and toluene The dosage ratio is 9.3 g:4.6 g:0.018 g:60 mL. False eyelashes based on bamboo charcoal powder as described in 1.

5. The polyester particles include polyethylene terephthalate particles, polybutylene terephthalate particles, etc.

2. The method according to claim 1, wherein the particle is one of polyarylate particles and polyarylate particles. False eyelashes based on bamboo charcoal powder.

6. Bamboo charcoal powder is Add 2 g of bamboo charcoal and 200 mL of nitric acid to the flask, heat to 80°C, and stir under reflux for 6 hours. After cooling, the bamboo charcoal powder is obtained by filtering, washing and drying.

2. The bamboo charcoal powder-based false eyelashes according to claim 1.

7. 7. The bamboo charcoal powder base according to claim 6, wherein the bamboo charcoal powder is 25,000 mesh. False eyelashes.

8. After the raw materials are mixed uniformly, they are melted, stretched, and cooled to produce bamboo charcoal powder-based false eyelashes.

2. The bamboo charcoal powder-based false eyelashes according to claim 1, further comprising a step of obtaining the false eyelashes. Manufacturing process.

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