Plant-oil-free environment-friendly nail polish gel and preparation method thereof
By preparing nail polish glue without HEMA and TPO, using a combination of specific polyurethane acrylate and photoinitiator, the problem of yellowing of nail polish glue and human body harm is solved, providing low heat exothermic, low odor, excellent hardness and flexibility, and achieving environmentally friendly manicure effects.
Patent Information
- Application Number
- CN202510721591.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2025-08-15
AI Technical Summary
The existing nail polish gel contains vegetable oil components, resulting in high yellowing value, and the active diluent HEMA and photoinitiator TPO are harmful to the human body, and lack environmentally friendly alternatives.
Using a combination of vegetable oil-based resin, the first and second polyurethane acrylate, reactive diluent and photoinitiator, avoiding the use of HEMA and TPO, polyurethane acrylate is prepared by isophorone diisocyanate and hexamethylene diisocyanate, and adding polyester triol and photoinitiator to prepare low-yellowing and low-exothermal nail polish glue.
It achieves low yellowing, low heat release and low odor nail polish glue, which meets the hardness and flexibility requirements of nail shaping and extension functions, and ensures environmentally friendly use.
Smart Images
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Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of nail polish, and in particular to an environmentally friendly nail polish that does not contain plant oils and a preparation method thereof. Background Art
[0002] Nail polish (construction glue), also known as nail art phototherapy glue, is applied on the nails and then cured under the irradiation of a nail lamp, thereby giving the nails beauty and protecting the nails.
[0003] Traditional nail polishes include a resin film-forming agent, a reactive diluent, a photoinitiator, and a filler. The resin film-forming agent typically includes polyurethane acrylic resins and excludes plant oil-based resins. Reactive diluents include 2-hydroxyethyl methacrylate (HEMA) and hydroxypropyl methacrylate (HPMA), and photoinitiators include trimethylbenzoyldiphenylphosphine oxide (TPO). However, 2-hydroxyethyl methacrylate and hydroxypropyl methacrylate as reactive diluents are prone to allergic reactions, while trimethylbenzoyldiphenylphosphine oxide can negatively impact reproductive function. Furthermore, because plant oils can cause a noticeable yellowing effect, plant oil-based nail polishes currently on the market that do not contain these three ingredients are relatively rare and exhibit a higher yellowing value.
[0004] Therefore, the existing technology needs to be improved. Summary of the Invention
[0005] In response to the defects of the existing technology, the present disclosure provides a three-type plant oil-free environmentally friendly nail polish and a preparation method thereof, aiming to solve the technical problem that the nail polish in the related art has a high yellowing value due to the presence of plant oil components.
[0006] The technical solutions adopted by the present disclosure to solve the above technical problems are as follows: On the one hand, the present disclosure provides a three-component plant oil-free environmentally friendly nail polish, comprising the following components by weight: 15-30 parts of a plant oil-based resin, 40-60 parts of a first polyurethane acrylate, 10-30 parts of a second polyurethane acrylate, 10-30 parts of a reactive diluent, 1-5 parts of a photoinitiator, 1-5 parts of an anti-settling agent, and 0-3 parts of an auxiliary agent; The first polyurethane acrylate is prepared by reacting polyether diol with isophorone diisocyanate, and then adding hydroxyethyl acrylate for reaction and end-capping; the second polyurethane acrylate is prepared by reacting hexamethylene diisocyanate with hydroxyethyl acrylate, and then adding polyester triol for reaction.
[0007] The active diluent does not contain 2-hydroxyethyl methacrylate (HEMA) and hydroxypropyl methacrylate (HPMA), and the photoinitiator does not contain trimethylbenzoyldiphenylphosphine oxide (TPO), thereby achieving the effect of clean and environmentally friendly use.
[0008] In some embodiments, the mass ratio of the first polyurethane acrylate, the plant oil-based resin, and the second polyurethane acrylate is 55-60:20:20-25.
[0009] In some embodiments, the plant oil-based resin is selected from at least one of epoxy soybean oil-based acrylate, castor oil-based polyurethane acrylate, and epoxy soybean oil-based polyurethane acrylate.
[0010] In some embodiments, the reactive diluent is selected from at least one of isobornyl methacrylate, isobornyl acrylate, tetrahydrofuran methacrylate, tetrahydrofuran acrylate, 2-hydroxy-2-butyl acrylate, N-acryloylmorpholine, and tripropylene glycol diacrylate.
[0011] In some embodiments, the reactive diluent is isobornyl methacrylate and / or tetrahydrofuran methacrylate, and includes the following components in weight fractions: 0-20 parts of isobornyl methacrylate and 0-15 parts of tetrahydrofuran methacrylate.
[0012] In some embodiments, the photoinitiator is selected from at least one of trimethylbenzoylphenylphosphinate, 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-hydroxycyclohexylphenyl ketone, and 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide.
[0013] In some embodiments, the photoinitiator is the 1-hydroxycyclohexyl phenyl ketone and the 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide, and the mass ratio of the 1-hydroxycyclohexyl phenyl ketone to the 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide is 1.5:0.5.
[0014] In some embodiments, the anti-settling agent is fumed silica, and the fumed silica is selected from at least one of Degussa Evonik R972, Degussa Evonik R974, and Degussa Evonik A200.
[0015] In some embodiments, the auxiliary agent includes the following components in mass fractions: 0.05-0.3 parts of a leveling agent, 0.2-0.5 parts of a wetting agent, and 1-2 parts of a defoaming agent; The leveling agent is selected from at least one of BYK-3505, BYK-3515, BYK-344, BYK-345, BYK-346, and BYK-347; the wetting agent is selected from at least one of BYK-333 and TEGO-450; and the defoaming agent is selected from at least one of BYK-024, BYK-028, and TEGO-920.
[0016] Another aspect of the present disclosure provides a method for preparing the above-mentioned three environmentally friendly nail polishes that do not contain plant oil base, comprising the following steps: Adding the photoinitiator and the reactive diluent into a vacuum defoaming stirring kettle container, mixing and stirring to obtain a first mixture; adding the first polyurethane acrylate, the second polyurethane acrylate, and the plant oil-based resin to the first mixture, mixing and stirring to obtain a second mixture; adding the anti-settling agent to the second mixture, mixing and stirring to obtain a third mixture; Adding the auxiliary agent to the third mixture, mixing and stirring to obtain a crude nail polish product; The crude nail polish product is subjected to vacuum defoaming treatment to obtain the three-plant oil-free environmentally friendly nail polish.
[0017] Beneficial Effects: The environmentally friendly, plant-oil-free nail polish provided herein contains a plant oil base. By using isophorone diisocyanate as one of the raw materials for the first polyurethane acrylate and hexamethylene diisocyanate as one of the raw materials for the second polyurethane acrylate, the resulting nail polish exhibits excellent yellowing resistance. Furthermore, the plant oil base provided herein is environmentally friendly, the reactive diluent does not contain the highly irritating 2-hydroxyethyl methacrylate (HEMA) and hydroxypropyl methacrylate (HPMA), and the photoinitiator does not contain trimethylbenzoyldiphenylphosphine oxide (TPO), which is harmful to the human body. Furthermore, the environmentally friendly, plant-oil-free nail polish provided herein exhibits low heat release during photocuring and meets the hardness and flexibility requirements for nail shaping and nail extension. DETAILED DESCRIPTION
[0018] The present disclosure is further described in detail below with reference to the following examples. The examples are intended to illustrate the present disclosure only and are not intended to limit the present disclosure in any way. All other examples derived by persons of ordinary skill in the art based on the examples of the present disclosure without inventive effort are intended to fall within the scope of protection of the present disclosure.
[0019] Unless otherwise specified, the raw materials and reagents in the examples are commercially available conventional products or can be prepared by known methods. Experimental methods in the examples without specifying specific conditions are generally performed according to conventional conditions in the art or according to conditions recommended by the manufacturer.
[0020] The disclosed environmentally friendly, plant-oil-free nail polish comprises the following components by weight: 15-30 parts plant-oil-based resin, 40-60 parts first polyurethane acrylate, 10-30 parts second polyurethane acrylate, 10-30 parts reactive diluent, 1-5 parts photoinitiator, 1-5 parts anti-settling agent, and 0-3 parts additive. Thus, the disclosed nail polish does not contain HEMA, HPMA, or TPO, achieving clean and environmentally friendly results.
[0021] The first polyurethane acrylate is prepared by reacting a polyether diol with isophorone diisocyanate, followed by the addition of hydroxyethyl acrylate for end-capping. The high molecular weight of the polyether diol significantly reduces the density of carbon-carbon double bonds within the system, thereby reducing the heat released during light curing. The use of isophorone diisocyanate as a raw material ensures that the synthesized alicyclic first polyurethane acrylate exhibits excellent yellowing resistance, hardness, and flexibility.
[0022] The second polyurethane acrylate is prepared by reacting hexamethylene diisocyanate with hydroxyethyl acrylate, followed by the addition of a polyester triol. The high cohesive energy of the polyester triol improves the hardness and reaction speed of the second polyurethane acrylate. The use of hexamethylene diisocyanate as one of the raw materials ensures that the synthesized aliphatic second polyurethane acrylate exhibits excellent yellowing resistance and flexibility. Furthermore, by adjusting the ratio of the first and second polyurethane acrylates, the resulting environmentally friendly, plant-oil-free nail polish exhibits low yellowing and heat release, while meeting the hardness and flexibility requirements for nail plasticity and nail extension. Furthermore, the aforementioned polyether diol can be, but is not limited to, polypropylene glycol PPG3000, and the aforementioned polyester triol can be, but is not limited to, polycaprolactone triol.
[0023] The reactive diluent is selected from at least one of isobornyl methacrylate, isobornyl acrylate, tetrahydrofuran methacrylate, tetrahydrofuran acrylate, 2-hydroxybutyl 2-propenoate, N-acryloylmorpholine, and tripropylene glycol diacrylate. Conventional nail polish compositions commonly use 2-hydroxyethyl methacrylate (HEMA) and hydroxypropyl methacrylate (HPMA) as reactive diluents. These are highly irritating and can cause skin allergies. Therefore, these two monomers are not used as reactive diluents in the present disclosure.
[0024] The plant oil-based resin is at least one selected from epoxy soybean oil-based acrylate, castor oil-based polyurethane acrylate, and epoxy soybean oil-based polyurethane acrylate.
[0025] The photoinitiator is selected from at least one of trimethylbenzoylphenylphosphinate (photoinitiator TPO-L), 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-hydroxycyclohexylphenyl ketone (photoinitiator 184), and 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide (photoinitiator TMO). Trimethylbenzoyldiphenylphosphine oxide (TPO) is commonly used as a photoinitiator in conventional nail polishes. However, TPO is harmful to the human body and can negatively affect reproductive function. Therefore, TPO is not used as the photoinitiator in the present disclosure.
[0026] The anti-settling agent is fumed silica, and is selected from at least one of Degussa Evonik R972, Degussa Evonik R974, and Degussa Evonik A200.
[0027] The additives include the following components in mass fractions: 0.05-0.3 parts of a leveling agent, 0.2-0.5 parts of a wetting agent, and 1-2 parts of a defoaming agent; wherein the leveling agent is selected from at least one of BYK-3505, BYK-3515, BYK-344, BYK-345, BYK-346, and BYK-347; the wetting agent is selected from at least one of BYK-333 and TEGO-450; and the defoaming agent is selected from at least one of BYK-024, BYK-028, and TEGO-920.
[0028] Example 1 This embodiment provides an environmentally friendly, plant-oil-based nail polish that contains "three non-compliances." The "three non-compliances" include the absence of the highly irritating 2-hydroxyethyl methacrylate (HEMA) and hydroxypropyl methacrylate (HPMA) as active diluents, and the absence of trimethylbenzoyl diphenylphosphine oxide (TPO) as a photoinitiator. This means the final product is free of HEMA, HPMA, and TPO, ensuring clean and environmentally friendly use. The components, by mass, are: 20 parts plant-oil-based resin, 57 parts first polyurethane acrylate, 20 parts second polyurethane acrylate, 18 parts active diluent, 2 parts photoinitiator, 1 part anti-settling agent, and 1.6 parts additive.
[0029] Among them, the plant oil-based resin is epoxy soybean oil-based polyurethane acrylate; the first polyurethane acrylate is prepared by reacting polyether diol with isophorone diisocyanate, and then adding hydroxyethyl acrylate for reaction and capping; the second polyurethane acrylate is prepared by reacting hexamethylene diisocyanate with hydroxyethyl acrylate, and then adding polyester triol for reaction; the reactive diluent is isobornyl methacrylate; the photoinitiator includes 1.5 parts of 1-hydroxycyclohexyl phenyl ketone (photoinitiator 184) and 0.5 parts of 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide (photoinitiator TMO); the anti-settling agent is 1 part of Degussa Evonik R974 fumed silica; and the additives include 0.1 parts of BYK-346 leveling agent, 0.5 parts of BYK-333 wetting agent, and 1 part of BYK-024 defoamer.
[0030] This embodiment also provides a method for preparing the aforementioned environmentally friendly nail polish that does not contain the three vegetable oil-based ingredients. The active diluent does not contain 2-hydroxyethyl methacrylate (HEMA) and hydroxypropyl methacrylate (HPMA), which are highly irritating, and the photoinitiator does not contain trimethylbenzoyldiphenylphosphine oxide (TPO). That is, the final product does not contain HEMA, HPMA, and TPO, thereby achieving a clean and environmentally friendly use effect. The method comprises the steps of: Adding the photoinitiator and the reactive diluent into a vacuum defoaming stirring kettle container in sequence, mixing and stirring uniformly to obtain a first mixture; sequentially adding the first polyurethane acrylate, the second polyurethane acrylate, and the plant oil-based resin to the first mixture, mixing and stirring until uniform, to obtain a second mixture; adding an anti-settling agent to the second mixture, mixing and stirring uniformly to obtain a third mixture; Add a leveling agent, a wetting agent, and a defoaming agent to the third mixture in sequence, mix and stir evenly to obtain a viscous gel-like crude nail polish product; The crude nail polish is added to a vacuum defoaming mixer and defoamed to obtain a bubble-free, clear, and transparent homogeneous, plant-oil-free, environmentally friendly nail polish. The prepared plant-oil-free, environmentally friendly nail polish can be subsequently tested for product performance, but this is not detailed here.
[0031] Example 2 This embodiment provides an environmentally friendly, plant-oil-free nail polish. This means that the final product does not contain HEMA, HPMA, or TPO, achieving clean and environmentally friendly results. The components, by mass, are: 20 parts plant-oil-based resin, 57 parts first polyurethane acrylate, 20 parts second polyurethane acrylate, 18 parts reactive diluent, 2 parts photoinitiator, 1 part anti-settling agent, and 1.6 parts additive.
[0032] Among them, the rest of the conditions of Example 2 are the same as those of Example 1, except that the photoinitiator in Example 2 includes 1 part of 1-hydroxycyclohexyl phenyl ketone (photoinitiator 184) and 1 part of 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide (photoinitiator TMO).
[0033] Example 3 This embodiment provides an environmentally friendly, plant-oil-free nail polish. This means that the final product does not contain HEMA, HPMA, or TPO, achieving clean and environmentally friendly results. The components, by mass, are: 20 parts plant-oil-based resin, 57 parts first polyurethane acrylate, 25 parts second polyurethane acrylate, 13 parts reactive diluent, 1.5 parts photoinitiator, 1 part anti-settling agent, and 1.6 parts additive.
[0034] Among them, the remaining conditions of Example 3 are the same as those of Example 1, except that in Example 3, the second polyurethane acrylate is 25 parts; the reactive diluent is 13 parts of tetrahydrofuran methacrylate; and the photoinitiator includes 1 part of 1-hydroxycyclohexyl phenyl ketone (photoinitiator 184) and 0.5 parts of 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide (photoinitiator TMO).
[0035] Example 4 This embodiment provides an environmentally friendly, plant-oil-free nail polish. This means that the final product does not contain HEMA, HPMA, or TPO, achieving clean and environmentally friendly results. The components, by mass, are: 20 parts plant-oil-based resin, 57 parts first polyurethane acrylate, 25 parts second polyurethane acrylate, 13 parts reactive diluent, 2 parts photoinitiator, 1 part anti-settling agent, and 1.6 parts additive.
[0036] Among them, the remaining conditions of Example 4 and Example 3 are the same, except that the photoinitiator in Example 4 includes 1 part of 1-hydroxycyclohexyl phenyl ketone (photoinitiator 184) and 1 part of 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide (photoinitiator TMO).
[0037] Example 5 This embodiment provides an environmentally friendly, plant-oil-free nail polish. This means that the final product does not contain HEMA, HPMA, or TPO, achieving clean and environmentally friendly results. The components, by mass, are: 20 parts plant-oil-based resin, 55 parts first polyurethane acrylate, 23 parts second polyurethane acrylate, 18 parts reactive diluent, 2 parts photoinitiator, 1 part anti-settling agent, and 1.6 parts additive.
[0038] Among them, the rest of the conditions of Example 5 are the same as those of Example 1, except that in Example 5, the first polyurethane acrylate is 55 parts; the second polyurethane acrylate is 23 parts; and the active diluent includes 10 parts of isobornyl methacrylate and 8 parts of tetrahydrofuran methacrylate.
[0039] Example 6 This embodiment provides an environmentally friendly, plant-oil-free nail polish. This means that the final product does not contain HEMA, HPMA, or TPO, achieving clean and environmentally friendly results. The components, by mass, are: 20 parts plant-oil-based resin, 55 parts first polyurethane acrylate, 23 parts second polyurethane acrylate, 18 parts reactive diluent, 2 parts photoinitiator, 1 part anti-settling agent, and 1.6 parts additive.
[0040] Among them, the remaining conditions of Example 6 and Example 5 are the same, except that the photoinitiator in Example 5 includes 1.5 parts of 1-hydroxycyclohexyl phenyl ketone (photoinitiator 184) and 0.5 parts of 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide (photoinitiator TMO); the photoinitiator in Example 6 includes 1 part of 1-hydroxycyclohexyl phenyl ketone (photoinitiator 184) and 1 part of 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide (photoinitiator TMO).
[0041] The three plant oil-free environmentally friendly nail polishes prepared in Examples 1-6 were subjected to performance tests, and the test results are shown in Table 1.
[0042] Table 1
[0043] The performance testing method is as follows: (1) Curing exothermic temperature peak test: Take 0.3g of three-type environmentally friendly nail polish that does not contain vegetable oil and place it on a 2cm*2cm*1mm silicone plate, use a Melodysusie brand light therapy nail lamp to cure it for 60s, and use an infrared temperature probe to test the temperature value and peak value during the test; among them, the larger the temperature value, the higher the curing exothermic temperature, and thus the hotter it is; (2) Shore hardness test: Take 0.3g of three-type environmentally friendly nail polish that does not contain plant oil base and place it on a 2cm*2cm*1mm silicone plate, use a Melodysusie brand light therapy nail lamp to cure for 60s, cool for 5min, and use a D-type Shore hardness tester to test the Shore hardness value; among them, the larger the Shore hardness value, the higher the hardness; (3) Flexibility test: Use a 200 μm preparation device to make a film of three types of environmentally friendly nail polish that does not contain plant oil. After curing, take the film and fold it repeatedly in half. The number of folds before the film breaks is recorded. The more folds, the better the flexibility. (4) Yellowing test: Use a 200 μm preparation device to make a film of three environmentally friendly nail polishes that do not contain plant oils on white cardboard. After curing, use a colorimeter to test the yellowing Δb value of the film; among them, the larger the yellowing Δb value, the higher the yellowing.
[0044] As shown in Table 1, products using isobornyl methacrylate as a reactive diluent achieve higher hardness than those using tetrahydrofuran methacrylate. The amount of reactive diluent added can be adjusted based on the desired viscosity of the nail polish. When the amount of reactive diluent is between 13 and 18 parts, the product achieves low odor, low yellowing, low heat release, high hardness, and good flexibility, thus meeting the requirements for nail shaping and nail extension.
[0045] To explore the effect of the ratio (mass fraction) of the first polyurethane acrylate to the second polyurethane acrylate on the performance of the third environmentally friendly nail polish that does not contain a vegetable oil base, a total of 80 parts of the first polyurethane acrylate and the second polyurethane acrylate, 18 parts of isobornyl methacrylate as the reactive diluent, and 2 parts of photoinitiator TMO as the photoinitiator were selected. Curing exotherm temperature peak test, Shore hardness test, and flexibility test were conducted. The test results are shown in Table 2.
[0046] Table 2
[0047] As can be seen in Table 2, as the ratio of the first to second urethane acrylate increases, the product's curing exotherm temperature decreases, its hardness decreases, and its flexibility increases. This is because the increased proportion of the first urethane acrylate reduces the density of carbon-carbon double bonds in the system, slowing the curing reaction rate and leading to a decrease in curing exotherm. Simultaneously, the decreased proportion of the second urethane acrylate reduces the content of the high-cohesive-energy polyester triol, thereby reducing the product's hardness while increasing its flexibility.
[0048] To explore the effect of the selection of reactive diluent on the performance of the three plant oil-free environmentally friendly nail polishes, a total of 80 parts of the first polyurethane acrylate and the second polyurethane acrylate were selected (wherein, the ratio of the first polyurethane acrylate to the second polyurethane acrylate was 3:1), the total amount of reactive diluent was 18 parts, and the photoinitiator was 2 parts of photoinitiator TMO. The curing exotherm temperature peak test, Shore hardness test, and flexibility test were conducted. The test results are shown in Table 3.
[0049] Table 3
[0050] As can be seen from Table 3, the curing heat release of the product is lower when isobornyl methacrylate and tetrahydrofuran methacrylate are used as reactive diluents. This is because both contain methyl groups, and the steric hindrance of the methyl group slows down the curing reaction speed, resulting in a lower curing heat release.
[0051] In order to explore the effect of the selection of photoinitiator on the performance of the three plant oil-free environmentally friendly nail polishes, a total of 80 parts of the first polyurethane acrylate and the second polyurethane acrylate (wherein the ratio of the first polyurethane acrylate to the second polyurethane acrylate is 3:1), 18 parts of isobornyl methacrylate as the active diluent, and 2 parts of the total photoinitiator were selected to conduct a curing exotherm temperature peak test, a Shore hardness test, and a flexibility test. The test results are shown in Table 4.
[0052] Table 4
[0053] Table 4 shows that when using photoinitiators TMO and 184 in a ratio of 0.5:1.5, the product exhibits lower curing exotherm and higher hardness. Since TPO-L is a yellow liquid, it exhibits a higher yellowing value than TMO, making TMO the preferred choice.
[0054] In order to explore the effect of the amount of plant oil-based resin on the performance of the three plant oil-free environmentally friendly nail polishes, the plant oil-based resin was selected as epoxy soybean oil-based polyurethane acrylate, a total of 60 parts of the first polyurethane acrylate and the second polyurethane acrylate (including 45 parts of the first polyurethane acrylate and 15 parts of the second polyurethane acrylate) were selected, the active diluent was 18 parts of isobornyl methacrylate, and the total amount of the photoinitiator was 2 parts. The curing exotherm temperature peak test, Shore hardness test, flexibility test, and yellowing test were carried out, and the test results are shown in Table 5.
[0055] Table 5
[0056] As shown in Table 5, increasing the amount of epoxy soybean oil-based polyurethane acrylate decreases the curing heat release and hardness of the product. This is due to the slower curing reaction rate of epoxy soybean oil-based polyurethane acrylate, which reduces the curing heat release, and the incomplete cross-linking reaction, which leads to a decrease in hardness. However, since epoxy soybean oil-based polyurethane acrylate has a yellowish tint, increasing its dosage results in a higher yellowing value. Therefore, the optimal dosage of epoxy soybean oil-based polyurethane acrylate is 20 parts.
[0057] Preferably, the ratio of the first polyurethane acrylate to the second polyurethane acrylate is 3:1, the active diluent is isobornyl methacrylate and / or tetramethylene methacrylate, the photoinitiator is photoinitiator TMO and / or photoinitiator 184, and the plant oil-based resin is epoxy soybean oil-based polyurethane acrylate.
[0058] In summary, the three environmentally friendly nail polishes provided by the present disclosure that do not contain plant oils have the following outstanding performance characteristics compared to commonly used nail polish products on the market: 1. The three vegetable oil-free environmentally friendly nail polish provided by the present disclosure is guaranteed to be free of HEMA, HPMA and TPO, and can achieve the effect of clean and environmentally friendly use; 2. The environmentally friendly nail polish provided by the present disclosure does not contain plant oils, and reduces the yellowing caused by the yellow phase brought by the plant oil components and the yellowing caused by the double bond reaction through the selection and proportion design of raw materials; 3. The environmentally friendly nail polish provided by the present disclosure, which does not contain plant oil, releases low heat during light curing, so that the hands will not be burned during the manicure operation; 4. The environmentally friendly nail polish gel provided by the present disclosure does not contain plant oils, and the odor of the nail polish gel is greatly reduced by selecting a low-irritation and low-odor active diluent; 5. The environmentally friendly nail polish provided by the present disclosure, which does not contain plant oils, has excellent thixotropic properties, can be quickly shaped and does not flow during shaping, making it easier for manicurists to operate; 6. The three-type plant oil-free environmentally friendly nail polish provided by the present invention has excellent hardness and flexibility, so that the nail polish after shaping is not easily bent or broken and deformed and softened, meeting the hardness and flexibility requirements required for nail shaping and nail extension functions.
[0059] It is understood that the terms "first" and "second" in this disclosure are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0060] The above embodiments are only used to illustrate the present disclosure and are not used to limit the scope of the present disclosure. Any modifications or changes that do not violate the spirit of the present disclosure are within the scope of protection of the present disclosure.
Claims
1. A three-free plant oil-based environmentally friendly nail polish, characterized in that: The invention comprises the following components in mass fractions: 15-30 parts of plant oil-based resin, 40-60 parts of first polyurethane acrylate, 10-30 parts of second polyurethane acrylate, 10-30 parts of reactive diluent, 1-5 parts of photoinitiator, 1-5 parts of anti-settling agent, and 0-3 parts of auxiliary agent; The first polyurethane acrylate is prepared by reacting polyether diol with isophorone diisocyanate, and then adding hydroxyethyl acrylate for reaction and end-capping; the second polyurethane acrylate is prepared by reacting hexamethylene diisocyanate with hydroxyethyl acrylate, and then adding polyester triol for reaction.
2. The three-free plant oil-based environmentally friendly nail polish according to claim 1, characterized in that: The mass ratio of the first polyurethane acrylate, the plant oil-based resin, and the second polyurethane acrylate is 55-60:20:20-25.
3. The three-free plant oil-based environmentally friendly nail polish according to claim 1, characterized in that: The plant oil-based resin is selected from at least one of epoxy soybean oil-based acrylate, castor oil-based polyurethane acrylate, and epoxy soybean oil-based polyurethane acrylate.
4. The three-free plant oil-based environmentally friendly nail polish according to claim 1, characterized in that: The reactive diluent is selected from at least one of isobornyl methacrylate, isobornyl acrylate, tetrahydrofuran methacrylate, tetrahydrofuran acrylate, 2-hydroxy-2-butyl acrylate, N-acryloylmorpholine, and tripropylene glycol diacrylate.
5. The three-free plant oil-based environmentally friendly nail polish according to claim 4, characterized in that: The active diluent is isobornyl methacrylate and / or tetrahydrofuran methacrylate, and comprises the following components in mass fractions: 0-20 parts of isobornyl methacrylate and 0-15 parts of tetrahydrofuran methacrylate.
6. The three-free plant oil-based environmentally friendly nail polish according to claim 1, characterized in that: The photoinitiator is selected from at least one of trimethylbenzoylphenylphosphinate, 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-hydroxycyclohexylphenyl ketone, and 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide.
7. The three-free plant oil-based environmentally friendly nail polish according to claim 6, characterized in that: The photoinitiator is the 1-hydroxycyclohexyl phenyl ketone and the 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide, and the mass ratio of the 1-hydroxycyclohexyl phenyl ketone to the 2,4,6-trimethylbenzoyl-di(p-tolyl)phosphine oxide is 1.5:0.
5.
8. The three-free plant oil-based environmentally friendly nail polish according to claim 1, characterized in that: The anti-settling agent is fumed silica, and the fumed silica is selected from at least one of Degussa Evonik R972, Degussa Evonik R974, and Degussa Evonik A200.
9. The three-free plant oil-based environmentally friendly nail polish according to claim 1, characterized in that: The auxiliary agent includes the following components by mass fraction: 0.05-0.3 parts of leveling agent, 0.2-0.5 parts of wetting agent, and 1-2 parts of defoaming agent; The leveling agent is selected from at least one of BYK-3505, BYK-3515, BYK-344, BYK-345, BYK-346, and BYK-347; the wetting agent is selected from at least one of BYK-333 and TEGO-450; and the defoaming agent is selected from at least one of BYK-024, BYK-028, and TEGO-920.
10. A preparation method for preparing the three-free plant oil-based environmentally friendly nail polish according to any one of claims 1 to 9, characterized in that: The following steps are involved: Adding the photoinitiator and the reactive diluent into a vacuum defoaming stirring kettle container, mixing and stirring to obtain a first mixture; adding the first polyurethane acrylate, the second polyurethane acrylate, and the plant oil-based resin to the first mixture, mixing and stirring to obtain a second mixture; adding the anti-settling agent to the second mixture, mixing and stirring to obtain a third mixture; Adding the auxiliary agent to the third mixture, mixing and stirring to obtain a crude nail polish product; The crude nail polish product is subjected to vacuum defoaming treatment to obtain the three-plant oil-free environmentally friendly nail polish.