Formula and process of plant oil-based aromatherapy candle with high essential oil content

Abstract

The invention discloses a formula and process of a plant oil-based aromatherapy candle with high essential oil content, and belongs to the technical field of aromatherapy candles, the formula comprises the following raw materials by mass: 60-70 parts of soybean wax, 10-15 parts of coconut wax, 12-15 parts of plant essential oil and 5-10 parts of an additive, the coconut wax and the soybean wax are compounded to form a compact and stable crystal structure and wrap the plant essential oil, so that the plant essential oil is uniformly dispersed and fixed in the crystal structure. The problems that the existing fragrance is rapidly dissipated and volatilized, the fragrance release time is short, the fragrance persistence is insufficient, the fragrance of the aromatherapy candle is decompressed, and the healing effect of relieving the body and mind is greatly reduced are solved. According to the aromatherapy candle, fragrance is not prone to being rapidly dissipated and volatilized, the fragrance releasing time is long, the fragrance persistence is sufficient, and the curing effects of fragrance decompression and body and mind soothing of the aromatherapy candle can be improved.

Description

Technical Field

[0001] This invention relates to the field of scented candle technology, specifically to a formula and process for a plant oil-based scented candle with high essential oil content. Background Technology

[0002] Scented candles are characterized by their fresh and pleasant fragrance. Unlike traditional candles, scented candles are a type of craft candle, with a variety of shapes and beautiful colors. They contain natural plant essential oils that emit a pleasant fragrance when burned.

[0003] Chinese patent application CN116426341A discloses a smokeless solid wax and its preparation method. The smokeless solid wax comprises the following components by weight: 40-60 parts coconut wax, 30-50 parts stabilizer A, 1-5 parts stabilizer B, and 1-10 parts essential oil. Stabilizer A includes palm oil and paraffin wax. Coconut wax, belonging to the natural palm family, produces fewer harmful gases when burned. The combination of palm oil and stabilizer B ensures complete combustion of the solid wax, thereby reducing carbon monoxide production and air pollution. However, this patent has the following drawbacks: Existing scented candles have fragrances that dissipate and evaporate quickly, resulting in a short release time and insufficient fragrance persistence. This greatly reduces the therapeutic effects of scented candles in relieving stress and soothing the mind and body. Summary of the Invention

[0004] The purpose of this invention is to provide a formula and process for a plant oil-based scented candle with high essential oil content. The fragrance does not easily dissipate or evaporate quickly, and the fragrance release time is long, resulting in a strong and lasting aroma. This enhances the aromatherapy and stress-relieving effects of the scented candle, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A formula for a plant-based scented candle with high essential oil content includes the following raw materials in parts by weight: 60-70 parts soy wax, 10-15 parts coconut wax, 12-15 parts plant essential oil, and 5-10 parts additives. The coconut wax and soy wax are combined to form a dense and stable crystal structure and encapsulate the plant essential oil, so that the plant essential oil is evenly dispersed and fixed in the crystal structure.

[0006] Preferably, the additive comprises the following raw materials in parts by weight: 3-8 parts of stabilizer and 5-12 parts of surfactant.

[0007] Preferably, the stabilizer is one of ethylene-vinyl acetate copolymer, polyethylene wax, and microcrystalline wax.

[0008] Preferably, the production process of the ethylene-vinyl acetate copolymer is as follows: high-purity ethylene, vinyl acetate monomer and molecular weight regulator are mixed and compressed to an extremely high pressure of 100-200 MPa using a multi-stage compressor. The compressed mixture is sent into a high-pressure polymerization reactor, and a free radical initiator is injected into the reactor at the same time. The reaction temperature is 150-200°C and the pressure is 100-200 MPa. Under high temperature and high pressure, the initiator decomposes to generate free radicals, which attack the double bonds of ethylene and vinyl acetate, and initiate a chain polymerization reaction to form a long chain of ethylene-vinyl acetate copolymer. After separation, purification and granulation, it becomes the final ethylene-vinyl acetate copolymer product.

[0009] Preferably, the surfactant is one of Victoria wax and stearic acid.

[0010] Preferably, the plant essential oil is one of lavender essential oil, chamomile essential oil, and tea tree essential oil.

[0011] According to another aspect of the present invention, a process for making a high essential oil content plant oil-based scented candle is provided, based on the above-described formula for a high essential oil content plant oil-based scented candle, comprising: S1. Cleaning and fixing: Clean the candle container to ensure that there is no dust, water, or oil inside. Use a wick holder to fix the wick vertically and centered at the bottom of the candle container. S2, Molten Wax Mixing: Accurately weigh the soybean wax and coconut wax according to the formula, and put the accurately weighed soybean wax and coconut wax into the wax melting pot. Use a water bath heating method to slowly heat it to 75-80°C, and stir it slowly during heating to make it completely melt into a liquid to form wax liquid. S3, Adding essential oils: Allow the wax liquid to stand and cool while monitoring the temperature in real time. Slowly pour the weighed plant essential oil into the wax liquid and stir continuously for 2-3 minutes to make the plant essential oil and wax liquid completely and evenly emulsify. Add additives to the emulsified wax liquid and plant essential oil and mix thoroughly. S4. Cooling and solidification: Slowly pour the thoroughly mixed wax into the prepared container, and place the filled scented candle on a windless and level surface to allow it to cool slowly and naturally. Let it stand at room temperature for 24-48 hours to allow it to fully harden.

[0012] Preferably, in step S3, when the wax liquid is allowed to cool to 60-65°C, the weighed plant essential oil is slowly poured into the wax liquid.

[0013] Preferably, in step S3, after slowly pouring the weighed plant essential oil into the wax liquid, stir at a low speed for 30 seconds at a speed of 200-300 r / min, then increase the speed to 500-800 r / min and maintain it for 2-3 minutes to ensure that the plant essential oil and wax liquid are completely and evenly emulsified.

[0014] Preferably, in step S3, when adding additives to the emulsified wax liquid and plant essential oil for thorough mixing, the stabilizer is added first, followed by the surfactant, and the mixture is stirred rapidly for 5-10 minutes at a speed of 600-800 r / min.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention involves precisely weighing soybean wax and coconut wax according to a formula, placing the precisely weighed soybean wax and coconut wax into a wax melting pot, and slowly heating them to 75-80°C using a water bath method. During heating, the wax is slowly stirred until it is completely melted into a liquid, forming a wax liquid. The wax liquid is then allowed to cool statically while the temperature is monitored in real time. When the wax liquid reaches a cooling temperature of 62°C, the weighed plant essential oil is slowly poured into the wax liquid, and the mixture is stirred continuously for 2-3 minutes to ensure that the plant essential oil and wax liquid are completely and evenly emulsified. Additives are then added to the emulsified wax liquid and plant essential oil and thoroughly mixed. The thoroughly mixed wax liquid is then slowly poured into a prepared container, and the filled scented candle is placed on a windless and level surface to cool naturally and slowly. After standing at room temperature for 24-48 hours, it is allowed to completely solidify. Its fragrance does not dissipate or evaporate quickly, and the fragrance release time is long, resulting in a strong and lasting aroma, which can enhance the aromatic stress-relieving and soothing therapeutic effects of the scented candle. Attached Figure Description

[0016] Figure 1 This is a process flow diagram of the high essential oil content plant oil-based scented candle of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] To address the issue of existing scented candles where the fragrance dissipates quickly and has a short release time, resulting in insufficient fragrance persistence and significantly reducing their therapeutic effects of aromatherapy for stress relief and relaxation, please refer to [link to relevant documentation]. Figure 1 This embodiment provides the following technical solution: Example 1 A formula for a plant-based scented candle with high essential oil content includes the following raw materials in parts by weight: 70 parts soy wax, 15 parts coconut wax, 15 parts plant essential oil, and 10 parts additives. The coconut wax and soy wax are combined to form a dense and stable crystal structure and encapsulate the plant essential oil, so that the plant essential oil is evenly dispersed and fixed in the crystal structure.

[0019] In this embodiment, the additive includes the following raw materials in parts by weight: 8 parts of stabilizer and 12 parts of surfactant, wherein the stabilizer is an ethylene-vinyl acetate copolymer.

[0020] In this embodiment, the production process of the ethylene-vinyl acetate copolymer is as follows: high-purity ethylene, vinyl acetate monomer, and molecular weight regulator are mixed and compressed to an extremely high pressure of 200 MPa using a multi-stage compressor. The compressed mixture is then fed into a high-pressure polymerization reactor, and a free radical initiator is injected into the reactor simultaneously. The reaction temperature is 200°C and the pressure is 200 MPa. Under high temperature and high pressure, the initiator decomposes to generate free radicals, which attack the double bonds of ethylene and vinyl acetate, initiating a chain polymerization reaction to form a long chain of ethylene-vinyl acetate copolymer. After separation, purification, and granulation, the final ethylene-vinyl acetate copolymer product is obtained.

[0021] In this embodiment, the surfactant is stearic acid and the plant essential oil is lavender essential oil.

[0022] Among them, surfactants can reduce the surface tension between wax and plant essential oils, promote uniform mixing and emulsification, and anchor plant essential oil molecules more stably in the wax crystal structure. This can effectively prevent plant essential oils from migrating to the surface after curing. Lavender essential oil has a soothing and relaxing effect, which can help relieve stress and help people fall asleep better.

[0023] It should be noted that soy wax, as the main structure of scented candles, burns cleanly and has moderate hardness. The addition of coconut wax increases the hardness, preventing softening at high temperatures and the rapid dissipation and evaporation of the plant essential oil fragrance. The added additives improve the fluidity of the wax, reduce bubbles, and optimize the burning surface.

[0024] Existing single waxes, such as soy wax, used in scented candles have a loose molecular structure and large pores, allowing plant essential oils to easily seep out. In this embodiment, coconut wax and soy wax are blended to form a dense and stable crystal structure that encapsulates the plant essential oils. This allows the plant essential oils to be evenly dispersed and fixed within the crystal structure. Soy wax provides good compatibility with essential oils and good combustion performance, while coconut wax has a dense molecular structure and fine crystals, which can form a more complex mixed crystal structure with soy wax. This greatly improves the wax base's ability to encapsulate plant essential oils, making the fragrance less likely to dissipate or evaporate quickly, and extending the fragrance release time. This results in a longer-lasting fragrance and enhances the aromatherapy, stress-relieving, and soothing therapeutic effects of the scented candle.

[0025] To better demonstrate the manufacturing process of high essential oil content plant oil-based scented candles, this embodiment provides a process for producing high essential oil content plant oil-based scented candles, based on the formula described above, including: S1. Cleaning and fixing: Clean the candle container to ensure that there is no dust, water, or oil inside. Use a wick holder to fix the wick vertically and centered at the bottom of the candle container. S2, Molten Wax Mixing: Accurately weigh the soybean wax and coconut wax according to the formula, and put the accurately weighed soybean wax and coconut wax into the wax melting pot. Use a water bath heating method to slowly heat it to 80°C, and stir it slowly during heating to make it completely melt into a liquid to form wax liquid. S3, Adding essential oils: Allow the wax liquid to stand and cool while monitoring the temperature in real time. When the wax liquid has cooled to 60°C, slowly pour the weighed plant essential oil into the wax liquid. First, stir at a low speed for 30 seconds at a speed of 300 r / min, then increase the speed to 800 r / min and maintain it for 2-3 minutes to ensure that the plant essential oil and wax liquid are completely and evenly emulsified. Then, add additives to the emulsified wax liquid and plant essential oil and mix thoroughly. First, add the stabilizer, then add the surfactant, and stir rapidly for 5-10 minutes at a speed of 800 r / min. S4. Cooling and solidification: Slowly pour the thoroughly mixed wax into the prepared container, and place the filled scented candle on a windless and level surface to allow it to cool slowly and naturally. Let it stand at room temperature for 24-48 hours to allow it to fully harden.

[0026] Example 2 A formula for a plant-based scented candle with high essential oil content includes the following raw materials in parts by weight: 70 parts soy wax, 15 parts coconut wax, 15 parts plant essential oil, and 10 parts additives. The coconut wax and soy wax are combined to form a dense and stable crystal structure and encapsulate the plant essential oil, so that the plant essential oil is evenly dispersed and fixed in the crystal structure.

[0027] In this embodiment, the additive includes the following raw materials in parts by weight: 8 parts of stabilizer and 12 parts of surfactant, wherein the stabilizer is an ethylene-vinyl acetate copolymer.

[0028] In this embodiment, the production process of the ethylene-vinyl acetate copolymer is as follows: high-purity ethylene, vinyl acetate monomer, and molecular weight regulator are mixed and compressed to an extremely high pressure of 200 MPa using a multi-stage compressor. The compressed mixture is then fed into a high-pressure polymerization reactor, and a free radical initiator is injected into the reactor simultaneously. The reaction temperature is 200°C and the pressure is 200 MPa. Under high temperature and high pressure, the initiator decomposes to generate free radicals, which attack the double bonds of ethylene and vinyl acetate, initiating a chain polymerization reaction to form a long chain of ethylene-vinyl acetate copolymer. After separation, purification, and granulation, the final ethylene-vinyl acetate copolymer product is obtained.

[0029] In this embodiment, the surfactant is stearic acid and the plant essential oil is lavender essential oil.

[0030] To better demonstrate the manufacturing process of high essential oil content plant oil-based scented candles, this embodiment provides a process for producing high essential oil content plant oil-based scented candles, based on the formula described above, including: S1. Cleaning and fixing: Clean the candle container to ensure that there is no dust, water, or oil inside. Use a wick holder to fix the wick vertically and centered at the bottom of the candle container. S2, Molten Wax Mixing: Accurately weigh the soybean wax and coconut wax according to the formula, and put the accurately weighed soybean wax and coconut wax into the wax melting pot. Use a water bath heating method to slowly heat it to 80°C, and stir it slowly during heating to make it completely melt into a liquid to form wax liquid. S3, Adding essential oils: Allow the wax liquid to stand and cool while monitoring the temperature in real time. When the wax liquid has cooled to 62°C, slowly pour the weighed plant essential oil into the wax liquid. First, stir at a low speed for 30 seconds at a speed of 300 r / min, then increase the speed to 800 r / min and maintain it for 2-3 minutes to ensure that the plant essential oil and wax liquid are completely and evenly emulsified. Then, add additives to the emulsified wax liquid and plant essential oil and mix thoroughly. First, add the stabilizer, then add the surfactant, and stir rapidly for 5-10 minutes at a speed of 800 r / min. S4. Cooling and solidification: Slowly pour the thoroughly mixed wax into the prepared container, and place the filled scented candle on a windless and level surface to allow it to cool slowly and naturally. Let it stand at room temperature for 24-48 hours to allow it to fully harden.

[0031] Example 3 A formula for a plant-based scented candle with high essential oil content includes the following raw materials in parts by weight: 70 parts soy wax, 15 parts coconut wax, 15 parts plant essential oil, and 10 parts additives. The coconut wax and soy wax are combined to form a dense and stable crystal structure and encapsulate the plant essential oil, so that the plant essential oil is evenly dispersed and fixed in the crystal structure.

[0032] In this embodiment, the additive includes the following raw materials in parts by weight: 8 parts of stabilizer and 12 parts of surfactant, wherein the stabilizer is an ethylene-vinyl acetate copolymer.

[0033] In this embodiment, the production process of the ethylene-vinyl acetate copolymer is as follows: high-purity ethylene, vinyl acetate monomer, and molecular weight regulator are mixed and compressed to an extremely high pressure of 200 MPa using a multi-stage compressor. The compressed mixture is then fed into a high-pressure polymerization reactor, and a free radical initiator is injected into the reactor simultaneously. The reaction temperature is 200°C and the pressure is 200 MPa. Under high temperature and high pressure, the initiator decomposes to generate free radicals, which attack the double bonds of ethylene and vinyl acetate, initiating a chain polymerization reaction to form a long chain of ethylene-vinyl acetate copolymer. After separation, purification, and granulation, the final ethylene-vinyl acetate copolymer product is obtained.

[0034] In this embodiment, the surfactant is stearic acid and the plant essential oil is lavender essential oil.

[0035] To better demonstrate the manufacturing process of high essential oil content plant oil-based scented candles, this embodiment provides a process for producing high essential oil content plant oil-based scented candles, based on the formula described above, including: S1. Cleaning and fixing: Clean the candle container to ensure that there is no dust, water, or oil inside. Use a wick holder to fix the wick vertically and centered at the bottom of the candle container. S2, Molten Wax Mixing: Accurately weigh the soybean wax and coconut wax according to the formula, and put the accurately weighed soybean wax and coconut wax into the wax melting pot. Use a water bath heating method to slowly heat it to 80°C, and stir it slowly during heating to make it completely melt into a liquid to form wax liquid. S3, Adding essential oils: Allow the wax liquid to stand and cool while monitoring the temperature in real time. When the wax liquid has cooled to 65°C, slowly pour the weighed plant essential oil into the wax liquid. First, stir at a low speed for 30 seconds at a speed of 300 r / min, then increase the speed to 800 r / min and maintain it for 2-3 minutes to ensure that the plant essential oil and wax liquid are completely and evenly emulsified. Then, add additives to the emulsified wax liquid and plant essential oil and mix thoroughly. First, add the stabilizer, then add the surfactant, and stir rapidly for 5-10 minutes at a speed of 800 r / min. S4. Cooling and solidification: Slowly pour the thoroughly mixed wax into the prepared container, and place the filled scented candle on a windless and level surface to allow it to cool slowly and naturally. Let it stand at room temperature for 24-48 hours to allow it to fully harden.

[0036] Example 4 A formula for a plant-based scented candle with high essential oil content includes the following raw materials in parts by weight: 70 parts soy wax, 15 parts coconut wax and 15 parts plant essential oil, wherein the coconut wax and soy wax are combined to form a dense and stable crystal structure and encapsulate the plant essential oil, so that the plant essential oil is evenly dispersed and fixed in the crystal structure.

[0037] In this embodiment, the plant essential oil is lavender essential oil.

[0038] To better demonstrate the manufacturing process of high essential oil content plant oil-based scented candles, this embodiment provides a process for producing high essential oil content plant oil-based scented candles, based on the formula described above, including: S1. Cleaning and fixing: Clean the candle container to ensure that there is no dust, water, or oil inside. Use a wick holder to fix the wick vertically and centered at the bottom of the candle container. S2, Molten Wax Mixing: Accurately weigh the soybean wax and coconut wax according to the formula, and put the accurately weighed soybean wax and coconut wax into the wax melting pot. Use a water bath heating method to slowly heat it to 80°C, and stir it slowly during heating to make it completely melt into a liquid to form wax liquid. S3, Adding essential oils: Allow the wax liquid to stand and cool while monitoring the temperature in real time. When the wax liquid has cooled to 62°C, slowly pour the weighed plant essential oil into the wax liquid. First, stir at a low speed for 30 seconds at a speed of 300 r / min, then increase the speed to 800 r / min and maintain it for 2-3 minutes to ensure that the plant essential oil and wax liquid are completely and evenly emulsified. Then, add additives to the emulsified wax liquid and plant essential oil and mix thoroughly. First, add the stabilizer, then add the surfactant, and stir rapidly for 5-10 minutes at a speed of 800 r / min. S4. Cooling and solidification: Slowly pour the thoroughly mixed wax into the prepared container, and place the filled scented candle on a windless and level surface to allow it to cool slowly and naturally. Let it stand at room temperature for 24-48 hours to allow it to fully harden.

[0039] Comparative Example A scented candle formula includes the following ingredients in parts by weight: 70 parts soy wax and 15 parts plant essential oil, wherein the plant essential oil is lavender essential oil.

[0040] The craftsmanship of scented candles includes: S1. Cleaning and fixing: Clean the candle container to ensure that there is no dust, water, or oil inside. Use a wick holder to fix the wick vertically and centered at the bottom of the candle container. S2, Molten Wax Mixing: Accurately weigh the soybean wax according to the formula, and put the accurately weighed soybean wax into a wax melting pot. Use a water bath heating method to slowly heat it to 80°C. Stir slowly during heating to make it completely melt into a liquid and form wax liquid. S3, Adding essential oils: Allow the wax liquid to stand and cool while monitoring the temperature in real time. When the wax liquid has cooled to 62°C, slowly pour the weighed plant essential oil into the wax liquid. First, stir at a low speed for 30 seconds at a speed of 300 r / min, then increase the speed to 800 r / min and maintain it for 2-3 minutes to ensure that the plant essential oil and wax liquid are completely and evenly emulsified. S4. Cooling and solidification: Slowly pour the thoroughly mixed wax into the prepared container, and place the filled scented candle on a windless and level surface to allow it to cool slowly and naturally. Let it stand at room temperature for 24-48 hours to allow it to fully harden.

[0041] The performance of the scented candles prepared in Examples 1-4 and the comparative examples was tested. The performance test results of the scented candles are shown in Table 1. Table 1: Performance Test Results of Scented Candles Example 1 Example 2 Example 3 Example 4 Comparative Example Soy wax 70 copies 70 copies 70 copies 70 copies 70 copies Coconut wax 15 copies 15 copies 15 copies 15 copies 0 copies additive 10 copies 10 copies 10 copies 0 copies 0 copies Plant essential oils 15 copies 15 copies 15 copies 15 copies 15 copies Wax liquid cooling temperature 60℃ 62℃ 65℃ 62℃ 62℃ Scent lasting time 7.5h 9.0h 7.0h 5.5h 2.2h 24-hour concentration <![CDATA[0.011ug / m 3 ]]> <![CDATA[0.013ug / m 3 ]]> <![CDATA[0.010ug / m 3 ]]> <![CDATA[0.008ug / m 3 ]]> <![CDATA[0.000ug / m 3 ]]> As can be seen from the table above, the scented candles prepared in Examples 1-4 all have a long fragrance retention time and a high 24-hour concentration.

[0042] In Example 2, compared with Example 1, the soybean wax, coconut wax, additives and plant essential oils remained unchanged, but the cooling temperature of the wax liquid increased from 60°C to 62°C, which increased the fragrance retention time and 24-hour concentration of the scented candle. This shows that the cooling temperature of the wax liquid has an impact on the fragrance retention time and 24-hour concentration of the scented candle. The increase in the cooling temperature of the wax liquid can increase the fragrance retention time and 24-hour concentration of the scented candle. In Example 3, compared with Example 2, the soybean wax, coconut wax, additives and plant essential oils remained unchanged, but the cooling temperature of the wax liquid increased from 62°C to 65°C, which reduced the fragrance retention time and the 24-hour concentration of the scented candle. This shows that the cooling temperature of the wax liquid has an impact on the fragrance retention time and the 24-hour concentration of the scented candle. The continuous increase in the cooling temperature of the wax liquid will reduce the fragrance retention time and the 24-hour concentration of the scented candle. Therefore, it can be seen that, in comparison with Examples 1-3, the cooling temperature of the wax liquid affects the fragrance retention time and 24-hour concentration of the scented candle. Among them, the fragrance retention time and 24-hour concentration of the scented candle are optimal when the wax liquid cooling temperature is 62°C. Specifically, adding plant essential oils when the temperature is too high will cause the plant essential oils to evaporate rapidly and the aroma to be severely lost. Adding plant essential oils when the temperature is too low will cause the wax liquid to start to solidify and become difficult to mix evenly. In Example 4, compared with Example 2, the cooling temperature of soybean wax, coconut wax, plant essential oil and wax liquid remained unchanged, and no additives were added. This resulted in a reduction in the fragrance retention time and a decrease in the 24-hour concentration of the scented candle. This indicates that additives have an impact on the fragrance retention time and 24-hour concentration of the scented candle. Adding additives would increase the fragrance retention time and the 24-hour concentration of the scented candle. In Example 4, compared with the comparative example, the cooling temperature of soybean wax, plant essential oil and wax liquid remained unchanged, but coconut wax was not added. This resulted in a reduction in the fragrance retention time and a decrease in the 24-hour concentration of the scented candle. This indicates that coconut wax affects the fragrance retention time and 24-hour concentration of the scented candle. Adding coconut wax would increase the fragrance retention time and the 24-hour concentration of the scented candle.

[0043] In summary, by accurately weighing soy wax and coconut wax according to the formula, and placing the precisely weighed soy wax and coconut wax into a wax melting pot, the temperature is slowly raised to 75-80°C using a water bath heating method. During heating, the wax is slowly stirred until it is completely melted into a liquid, forming a wax liquid. The wax liquid is allowed to cool statically while the temperature is monitored in real time. When the wax liquid cools to 62°C, the weighed plant essential oil is slowly poured into the wax liquid, and the mixture is stirred continuously for 2-3 minutes to ensure that the plant essential oil and wax liquid are completely and evenly emulsified. Additives are then added to the emulsified wax liquid and plant essential oil and thoroughly mixed. The thoroughly mixed wax liquid is then slowly poured into a prepared container, and the filled scented candle is placed on a windless and level surface to cool naturally and slowly. After standing at room temperature for 24-48 hours, it is allowed to completely solidify. Its fragrance does not dissipate or evaporate quickly, and the fragrance release time is long, resulting in a strong and lasting aroma, which can enhance the aromatic stress-relieving and soothing therapeutic effects of scented candles.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A formula for a plant-based scented candle with high essential oil content, characterized in that, The raw materials include the following parts by weight: 60-70 parts soy wax, 10-15 parts coconut wax, 12-15 parts plant essential oil, and 5-10 parts additives. Among them, coconut wax and soy wax are compounded to form a dense and stable crystal structure and encapsulate the plant essential oil, so that the plant essential oil is evenly dispersed and fixed in the crystal structure.

2. The formula for a high essential oil content plant oil-based scented candle according to claim 1, characterized in that, The additive comprises the following raw materials in parts by weight: 3-8 parts of stabilizer and 5-12 parts of surfactant.

3. The formula for a high essential oil content plant oil-based scented candle according to claim 2, characterized in that, The stabilizer is one of ethylene-vinyl acetate copolymer, polyethylene wax, and microcrystalline wax.

4. The formula for a high essential oil content plant oil-based scented candle according to claim 3, characterized in that, The production process of the ethylene-vinyl acetate copolymer is as follows: High-purity ethylene, vinyl acetate monomers, and molecular weight regulators are mixed and compressed to an extremely high pressure of 100-200 MPa using a multi-stage compressor. The compressed mixture is then fed into a high-pressure polymerization reactor, where a free radical initiator is simultaneously injected. Under high temperature and pressure, the initiator decomposes to generate free radicals, which attack the double bonds of ethylene and vinyl acetate, initiating a chain polymerization reaction to form a long chain of ethylene-vinyl acetate copolymer. After separation, purification, and granulation, the final ethylene-vinyl acetate copolymer product is obtained.

5. The formula for a high essential oil content plant oil-based scented candle according to claim 4, characterized in that, The surfactant is one of Victoria wax and stearic acid.

6. The formula for a high essential oil content plant oil-based scented candle according to claim 5, characterized in that, The plant essential oil is one of lavender essential oil, chamomile essential oil, and tea tree essential oil.

7. A process for making a high-essential-oil-content plant-based scented candle, based on the formula for a high-essential-oil-content plant-based scented candle as described in claim 6, characterized in that... include: S1. Cleaning and fixing: Clean the candle container to ensure that there is no dust, water, or oil inside. Use a wick holder to fix the wick vertically and centered at the bottom of the candle container. S2, Molten Wax Mixing: Accurately weigh the soybean wax and coconut wax according to the formula, and put the accurately weighed soybean wax and coconut wax into the wax melting pot. Use a water bath heating method to slowly heat it to 75-80°C, and stir it slowly during heating to make it completely melt into a liquid to form wax liquid. S3, Adding essential oils: Allow the wax liquid to stand and cool while monitoring the temperature in real time. Slowly pour the weighed plant essential oil into the wax liquid and stir continuously for 2-3 minutes to make the plant essential oil and wax liquid completely and evenly emulsify. Add additives to the emulsified wax liquid and plant essential oil and mix thoroughly. S4. Cooling and solidification: Slowly pour the thoroughly mixed wax into the prepared container, and place the filled scented candle on a windless and level surface to allow it to cool slowly and naturally. Let it stand at room temperature for 24-48 hours to allow it to fully harden.

8. The process for a high essential oil content plant oil-based scented candle according to claim 7, characterized in that, In step S3, when the wax liquid is allowed to cool to 60-65°C, the weighed plant essential oil is slowly poured into the wax liquid.

9. The process for a high essential oil content plant oil-based scented candle according to claim 8, characterized in that, In step S3, after slowly pouring the weighed plant essential oil into the wax liquid, stir at a low speed for 30 seconds at a speed of 200-300 r / min, then increase the speed to 500-800 r / min and maintain it for 2-3 minutes to make the plant essential oil and wax liquid completely and evenly emulsified.

10. The process for a high essential oil content plant oil-based scented candle according to claim 9, characterized in that, In step S3, when adding additives to the emulsified wax and plant essential oil for thorough mixing, the stabilizer is added first, followed by the surfactant, and the mixture is stirred rapidly for 5-10 minutes at a speed of 600-800 r / min.

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