Tea wax composition and preparation method thereof

Abstract

The invention relates to the field of tea wax materials, and discloses a tea wax composition and a preparation method thereof. Based on the total weight of the tea wax composition, the tea wax composition contains the following components in percentage by weight: 10-95% of 45 # Fischer-Tropsch wax, 1-30% of 52 # Fischer-Tropsch wax, 1-30% of 60 # Fischer-Tropsch wax and 1-20% of hydrocracking oil. The tea wax composition fully utilizes Fischer-Tropsch wax with different melting points, does not contain sulfur and nitrogen in the components, does not contain aromatic hydrocarbon after hydrotreatment, has uniform components and stable properties, is cleaner than a traditional petroleum-based product, and better meets the requirement for environmental protection.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tea wax materials, in particular to a tea wax composition and a preparation method thereof. BACKGROUND

[0002] Tea wax is also called coffee tea or warm tea, which is used for heat preservation or lighting, and has small volume and long burning time. In recent years, consumers pay more attention to environmental protection and health, and tea wax with environmentally friendly formula has become a new development direction. However, the production of plant wax mainly using palm wax and soy wax requires cutting down a large number of natural forests or occupying farmland to artificially plant palm and soybean, so as to obtain palm wax and soy wax, which seriously destroys the ecological environment and is not conducive to sustainable development. The Fischer-Tropsch synthesis product does not contain sulfur and nitrogen, does not contain aromatic hydrocarbons after hydrogenation treatment, has uniform components and stable properties, is cleaner than traditional petroleum-based products, and is more in line with the current global requirements for environmental protection.

[0003] Patent CN110029025B provides edible tea wax made of palm oil as a basic raw material, and adds mono-diglyceride fatty acid and polyglycerol fatty acid ester to solve the problem of blooming. However, the tea wax prepared by the technology has uneven surface, spots, high-temperature oiling, low-temperature cracking and easy discoloration.

[0004] Patent application CN116987552A discloses a preparation method of tea wax with improved stability, which uses shea wax and paraffin as raw materials. The production cost is high, and the paraffin contains sulfides, nitrides and aromatic compounds, which pollutes the environment during combustion. SUMMARY

[0005] The present application aims to overcome the problems of high production cost of animal and plant wax, the presence of sulfides, nitrides and aromatic compounds in paraffin, and easy pollution of the environment during combustion in the prior art, and provides a tea wax composition and a preparation method thereof. The tea wax composition makes full use of Fischer-Tropsch wax with different melting points, and the components do not contain sulfur and nitrogen, do not contain aromatic hydrocarbons after hydrogenation treatment, have uniform components, stable properties, are cleaner than traditional petroleum-based products, and are more in line with the requirements for environmental protection.

[0006] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a tea wax composition, which contains 10-95% by weight of 45# Fischer-Tropsch wax, 1-30% by weight of 52# Fischer-Tropsch wax, 1-30% by weight of 60# Fischer-Tropsch wax and 1-20% by weight of hydrocracking oil, based on the total weight of the tea wax composition.

[0007] Preferably, the tea wax composition contains 40-80% by weight of 45# Fischer-Tropsch wax, 10-20% by weight of 52# Fischer-Tropsch wax, 10-20% by weight of 60# Fischer-Tropsch wax and 10-20% by weight of hydrocracking oil, based on the total weight of the tea wax composition.

[0008] Preferably, the tea wax composition further contains 70# Fischer-Tropsch wax and / or 80# Fischer-Tropsch wax.

[0009] Preferably, based on the total weight of the tea wax composition, the content of 70# Fischer-Tropsch wax is 0.5-10% by weight, and the content of 80# Fischer-Tropsch wax is 0.5-10% by weight.

[0010] Preferably, the tea wax composition further contains fragrance and / or dye.

[0011] Preferably, the content of the fragrance is 0.1 to 5% by weight, based on the total weight of the tea wax composition.

[0012] Preferably, the dye content is 0.1 to 2% by weight, based on the total weight of the tea wax composition.

[0013] Preferably, the Fischer-Tropsch wax is a hydrocarbon obtained by Fischer-Tropsch synthesis, which has different melting points and distillation ranges after hydrogenation and fractionation.

[0014] Preferably, the hydrocracked oil is a hydrocarbon synthesized by Fischer-Tropsch, which is hydrotreated, isomerized / cracking and pyrolyzed, and then fractionated to obtain an oil phase component with a distillation range ≥300℃.

[0015] A second aspect of the present invention provides a method for preparing the aforementioned tea wax, the method comprising the following steps:

[0016] (1) Mix and melt 45# Fischer-Tropsch wax, 52# Fischer-Tropsch wax, 60# Fischer-Tropsch wax, hydrocracked oil, and optionally 70# Fischer-Tropsch wax, 80# Fischer-Tropsch wax, fragrance and dye, and maintain the temperature at 70-85℃ to obtain mixed wax liquid A;

[0017] (2) Mix and melt 45# Fischer-Tropsch wax, 52# Fischer-Tropsch wax, 60# Fischer-Tropsch wax, hydrocracked oil, and optionally 70# Fischer-Tropsch wax, 80# Fischer-Tropsch wax, fragrance and dye, and maintain the temperature at 65-80℃ to obtain mixed wax liquid B;

[0018] (3) The mixed wax liquid A is injected into the first filling tank, the temperature inside the first filling tank is maintained at 60-80°C, the mixed wax liquid A is dripped into the wax cup through the first filling line, and then cooled and shaped to obtain semi-finished tea wax.

[0019] (4) The wax cup is transferred to the second filling line, and the mixed wax liquid B is injected into the second filling tank. The temperature inside the second filling tank is maintained at 55-75°C. The mixed wax liquid B is dripped into the wax cup through the second filling line and then cooled and shaped.

[0020] Preferably, the material used in step (1) accounts for 5% of the total material usage.

[0021] The volume ratio of the prepared mixed wax liquid A to the prepared mixed wax liquid B is 1 to 9:1, ranging from 0% to 90%.

[0022] Preferably, the volume ratio of the prepared mixed wax liquid A to the prepared mixed wax liquid B is 1.5 to 8:1.

[0023] Preferably, in steps (1) and (2), the melting temperature is 80–90°C.

[0024] Preferably, in steps (3) and (4), the cooling conditions include a temperature of 15–25°C and a time of 10–15 min.

[0025] The tea wax composition of this invention fully utilizes Fischer-Tropsch waxes with different melting points. It contains no sulfur or nitrogen, and after hydrogenation treatment, it is free of aromatics. The composition is uniform, the properties are stable, and it is cleaner than traditional petroleum-based products. Furthermore, the Fischer-Tropsch wax oil is stable and requires no stabilizers, simplifying the production process, further reducing production costs, and resulting in more significant economic benefits.

[0026] The tea wax composition described in this invention uses Fischer-Tropsch wax, which is a component of Fischer-Tropsch synthesis products after hydrogenation and cracking, and then fractionated to obtain narrow-fraction Fischer-Tropsch wax products of different grades, such as 45#, 52#, 60#, 70#, and 80# Fischer-Tropsch wax. The narrow-fraction Fischer-Tropsch wax has good compatibility with fragrances and dyes, and the prepared tea wax has a small shrinkage rate, is not prone to hollowness, has a high flame height, and the Fischer-Tropsch wax components with different melting points can be freely adjusted, without wasting high-melting-point component resources. Attached Figure Description

[0027] Figure 1 A photograph of the tea wax prepared in Example 1.

[0028] Figure 2 Photographs of the flame height of the tea wax prepared in Examples 1, 2 and 3, wherein (a) is a photograph of the flame height of the tea wax prepared in Example 1; (b) is a photograph of the flame height of the tea wax prepared in Example 2; and (c) is a photograph of the flame height of the tea wax prepared in Example 3. Detailed Implementation

[0029] The following provides a detailed description of specific embodiments of the present invention. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the invention.

[0030] The endpoints and any values ​​of the ranges disclosed herein are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of the various ranges, the endpoint values ​​of the various ranges and individual point values, and individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed herein.

[0031] Based on the total weight of the tea wax composition described in this invention, the tea wax composition contains 10-95% by weight of 45# Fischer-Tropsch wax, 1-30% by weight of 52# Fischer-Tropsch wax, 1-30% by weight of 60# Fischer-Tropsch wax, and 1-20% by weight of hydrocracked oil, wherein the hydrocracked oil refers to a component oil produced by a hydrotreating unit and / or a cracking unit or an isomerization unit.

[0032] In a preferred embodiment, based on the total weight of the tea wax composition, the tea wax composition contains 40-80% by weight of 45# Fischer-Tropsch wax, 10-20% by weight of 52# Fischer-Tropsch wax, 10-20% by weight of 60# Fischer-Tropsch wax, and 10-20% by weight of hydrocracked oil. In these preferred embodiments, when the components in the tea wax composition are within the above-mentioned content ranges, the tea wax has a lower shrinkage rate and is less prone to hollowness.

[0033] In some embodiments, the tea wax composition may also contain 70# Fischer-Tropsch wax and / or 80# Fischer-Tropsch wax. When preparing the tea wax according to this embodiment, the high-melting-point Fischer-Tropsch wax component can be effectively utilized, increasing the melting point of the tea wax droplets and preventing melting during high-temperature exposure in summer, thus reducing resource waste.

[0034] In a preferred embodiment, based on the total weight of the tea wax composition, the content of 70# Fischer-Tropsch wax is 0.5-10% by weight, and the content of 80# Fischer-Tropsch wax is 0.5-10% by weight.

[0035] In some embodiments, the tea wax component of the present invention does not contain sulfur or nitrogen, does not contain aromatics after hydrogenation treatment, has a uniform composition, stable properties, and no odor during combustion, and can be used without fragrances and / or dyes.

[0036] In other embodiments, the tea wax composition may also contain fragrance and / or dye. In this invention, the tea wax composition exhibits good compatibility with fragrance and / or dye.

[0037] In a preferred embodiment, the fragrance is selected from at least one of gardenia essential oil, sandalwood essential oil, ambergris essential oil, and jasmine essential oil.

[0038] In a preferred embodiment, the dye is selected from at least one of oil-soluble yellow, oil-soluble green, oil-soluble red, and oil-soluble blue.

[0039] In a preferred embodiment, the content of the fragrance is 0.1 to 5% by weight, more preferably 2 to 4% by weight, based on the total weight of the tea wax composition.

[0040] In a preferred embodiment, the dye content is 0.1 to 2% by weight, more preferably 2 to 4% by weight, based on the total weight of the tea wax composition.

[0041] In this invention, Fischer-Tropsch wax can be hydrocarbons synthesized by Fischer-Tropsch synthesis, obtained through hydrogenation and fractionation to produce Fischer-Tropsch waxes with different melting points and distillation ranges. Specifically: the 45# Fischer-Tropsch wax has a melting point of 40-45°C, a distillation range of 215-500°C, and a penetration of 80-100 1 / 10 mm; the 52# Fischer-Tropsch wax has a melting point of 50-60°C, a distillation range of 300-550°C, and a penetration of 8-15 1 / 10 mm; the 60# Fischer-Tropsch wax has a melting point of 60-70°C, a distillation range of 350-580°C, and a penetration of 5-10 1 / 10 mm; and the 70# Fischer-Tropsch wax has a melting point of 70-80°C, a distillation range of 400-600°C, and a penetration of 3-8 1 / 10 mm. The 80# Fischer-Tropsch wax has a melting point of 80–90°C, a distillation range of 450–600°C, and a penetration of 2–5 1 / 10 mm. In this invention, the Fischer-Tropsch wax has a narrow distillation range and good compatibility with fragrances and dyes. The content of Fischer-Tropsch waxes with different melting points can be adjusted according to melting point, compatibility, and other requirements, without wasting high-melting-point components.

[0042] In this invention, the hydrocracked oil can be hydrocarbons synthesized by Fischer-Tropsch, which, after hydrogenation, isomerization / cracking, and pyrolysis, are fractionated to obtain oil phase components with a distillation range ≥300℃, specifically high-carbon branched alkanes or cycloalkanes. In this invention, the Fischer-Tropsch wax is mainly a normal component. After blending the narrow-fraction Fischer-Tropsch wax with isomerized or cracked components, the prepared candle has a smaller shrinkage rate and is less prone to hollowness.

[0043] In this invention, the fractionation and cutting process may include short-path distillation, molecular finishing, rectification and fractionation.

[0044] The method for preparing the tea wax described above according to the present invention includes the following steps:

[0045] (1) Mix and melt 45# Fischer-Tropsch wax, 52# Fischer-Tropsch wax, 60# Fischer-Tropsch wax, hydrocracked oil, and optionally 70# Fischer-Tropsch wax, 80# Fischer-Tropsch wax, fragrance and dye, and maintain the temperature at 70-85℃ to obtain mixed wax liquid A;

[0046] (2) Mix and melt 45# Fischer-Tropsch wax, 52# Fischer-Tropsch wax, 60# Fischer-Tropsch wax, hydrocracked oil, and optionally 70# Fischer-Tropsch wax, 80# Fischer-Tropsch wax, fragrance and dye, and maintain the temperature at 65-80℃ to obtain mixed wax liquid B;

[0047] (3) The mixed wax liquid A is injected into the first filling tank, the temperature inside the first filling tank is maintained at 60-80°C, the mixed wax liquid A is dripped into the wax cup through the first filling line, and then cooled and shaped to obtain semi-finished tea wax.

[0048] (4) The wax cup is transferred to the second filling line, and the mixed wax liquid B is injected into the second filling tank. The temperature inside the second filling tank is maintained at 55-75°C. The mixed wax liquid B is dripped into the wax cup through the second filling line and then cooled and shaped.

[0049] The method described in this invention involves dripping the tea wax in two stages, which can effectively prevent the tea wax from shrinking or becoming hollow.

[0050] In the method described in this invention, the material used in step (1) can account for 10% to 90% of the total material usage. Specifically, the amount of 45# Fischer-Tropsch wax used is 10% to 90% of the total amount of 45# Fischer-Tropsch wax used, the amount of 52# Fischer-Tropsch wax used is 10% to 90% of the total amount of 52# Fischer-Tropsch wax used, the amount of 60# Fischer-Tropsch wax used is 10% to 90% of the total amount of 60# Fischer-Tropsch wax used, and the amount of 60# Fischer-Tropsch wax used is 50% to 90% of the total amount of 60# Fischer-Tropsch wax used, so that the volume ratio of the prepared mixed wax liquid A to the prepared mixed wax liquid B is 1 to 9:1.

[0051] In a preferred embodiment, the volume ratio of the prepared mixed wax liquid A to the prepared mixed wax liquid B is 1.5 to 8:1.

[0052] More preferably, in order to avoid an increase in the shrinkage rate of the tea wax or the formation of hollows, the components and their proportions in the mixed wax liquid A are the same as those in the mixed wax liquid B.

[0053] In the method described in this invention, the melting temperature in steps (1) and (2) can be 80-90°C.

[0054] In some embodiments, when adding fragrance and / or dye in steps (1) and (2), the fragrance and / or dye are added after being mixed and melted with 45# Fischer-Tropsch wax, 52# Fischer-Tropsch wax, 60# Fischer-Tropsch wax, hydrocracked oil, and optionally 70# Fischer-Tropsch wax and 80# Fischer-Tropsch wax.

[0055] In some embodiments, the process of steps (1) and (2) may specifically include: mixing and melting 45# Fischer-Tropsch wax, 52# Fischer-Tropsch wax, 60# Fischer-Tropsch wax, hydrocracking oil, and optionally 70# Fischer-Tropsch wax and 80# Fischer-Tropsch wax under stirring conditions, maintaining the temperature at 70-85°C, adding fragrance and dye and continuing to stir until the materials are evenly mixed.

[0056] In some embodiments, in step (3), the mixed wax liquid A can be dripped into the wax cup through the first filling line until the wax cup volume is 50% to 90%, for example: 50%, 60%, 70%, 80%, 90%, and then the dripping is stopped. In a more preferred embodiment, in step (3), in order to further reduce the occurrence of hollowness in the final tea wax product, the mixed wax liquid A is dripped into the wax cup through the first filling line until the wax cup volume is 50% to 70%, and then the dripping is stopped.

[0057] In some embodiments, in step (4), the mixed wax liquid B is dripped into the wax cup through the second filling line until the wax cup is 100% full, and then the dripping is stopped.

[0058] In the method described in this invention, the cooling conditions in steps (3) and (4) may include: a temperature of 15 to 25°C and a time of 10 to 15 minutes.

[0059] In the method described in this invention, the cooling process in steps (3) and (4) can be either air cooling or natural cooling.

[0060] In a preferred embodiment, in step (3), the cooling and forming process is performed using air cooling, and in step (4), the cooling and forming process is performed using natural cooling.

[0061] The following examples further illustrate the tea wax composition and its preparation method according to the present invention. These examples are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following examples.

[0062] Unless otherwise specified, the experimental methods described in the following embodiments are conventional methods in the art.

[0063] Unless otherwise specified, all experimental materials used in the following examples are commercially available.

[0064] Example 1

[0065] (1) At 85°C and under stirring conditions, 60g of 45# Fischer-Tropsch wax, 20g of 52# Fischer-Tropsch wax, 10g of 60# Fischer-Tropsch wax and 10g of hydrocracking oil are mixed and melted in a wax melting tank, and the temperature is maintained at 80°C until the materials are mixed evenly to obtain mixed wax liquid A.

[0066] (2) At 85°C and under stirring conditions, 60g of 45# Fischer-Tropsch wax, 20g of 52# Fischer-Tropsch wax, 10g of 60# Fischer-Tropsch wax and 10g of hydrocracking oil are mixed and melted in a wax melting tank, and the temperature is maintained at 70°C until the materials are mixed evenly to obtain mixed wax liquid B.

[0067] (3) Inject the mixed wax liquid A into the first filling tank, maintain the temperature inside the first filling tank at 70°C, and drip the mixed wax liquid A into the wax cup through the first filling line until the wax cup is filled to 60% of its volume. Then turn on the air cooling device to cool the tea wax in the wax cup until it is formed at 20°C to obtain a semi-finished tea wax.

[0068] (4) The wax cup is transferred to the second filling line, and the mixed wax liquid B is injected into the second filling tank. The temperature inside the second filling tank is maintained at 65°C. The mixed wax liquid B is dripped into the wax cup through the second filling line until the wax cup is full. Then the wax cup is allowed to stand and cool naturally to 20°C to solidify. The prepared tea wax is denoted as A1.

[0069] Example 2

[0070] (1) At 80℃ and under stirring conditions, 60g of 45# Fischer-Tropsch wax, 20g of 52# Fischer-Tropsch wax, 10g of 60# Fischer-Tropsch wax, 10g of hydrocracked oil, 0.2g of gardenia fragrance essential oil and 0.2g of oil-soluble green dye are mixed and melted in a wax melting tank, and the temperature is maintained at 70℃ until the materials are mixed evenly to obtain mixed wax liquid A;

[0071] (2) At 80°C and under stirring conditions, 60g of 45# Fischer-Tropsch wax, 20g of 52# Fischer-Tropsch wax, 10g of 60# Fischer-Tropsch wax, 10g of hydrocracked oil, 0.2g of gardenia essential oil and 0.2g of oil-soluble green dye are mixed and melted in a wax melting tank, and the temperature is maintained at 65°C until the materials are mixed evenly to obtain mixed wax liquid B;

[0072] (3) Inject the mixed wax liquid A into the first filling tank, maintain the temperature inside the first filling tank at 65°C, and drip the mixed wax liquid A into the wax cup through the first filling line until the wax cup is filled to 50% of its volume. Then turn on the air cooling device to cool the tea wax in the wax cup until it is formed at 20°C to obtain a semi-finished tea wax.

[0073] (4) The wax cup is transferred to the second filling line, and the mixed wax liquid B is injected into the second filling tank. The temperature inside the second filling tank is maintained at 55°C. The mixed wax liquid B is dripped into the wax cup through the second filling line until the wax cup is full. Then the wax cup is allowed to stand and cool naturally to 20°C to solidify. The prepared tea wax is denoted as A2.

[0074] Example 3

[0075] (1) At 90°C and under stirring conditions, 50g of 45# Fischer-Tropsch wax, 20g of 52# Fischer-Tropsch wax, 10g of 60# Fischer-Tropsch wax, 10g of hydrocracked oil, 6g of 70# Fischer-Tropsch wax and 4g of 80# Fischer-Tropsch wax are mixed and melted in a wax melting tank, and the temperature is maintained at 90°C until the materials are mixed evenly to obtain mixed wax liquid A;

[0076] (2) At 90°C and under stirring conditions, 50g of 45# Fischer-Tropsch wax, 20g of 52# Fischer-Tropsch wax, 10g of 60# Fischer-Tropsch wax, 10g of hydrocracked oil, 6g of 70# Fischer-Tropsch wax and 4g of 80# Fischer-Tropsch wax are mixed and melted in a wax melting tank, and the temperature is maintained at 85°C until the materials are mixed evenly to obtain mixed wax liquid B;

[0077] (3) Inject the mixed wax liquid A into the first filling tank, maintain the temperature inside the first filling tank at 85°C, and drip the mixed wax liquid A into the wax cup through the first filling line until the wax cup is filled to 60% of its volume. Then turn on the air cooling device to cool the tea wax in the wax cup until it is formed at 20°C to obtain a semi-finished tea wax.

[0078] (4) The wax cup is transferred to the second filling line, and the mixed wax liquid B is injected into the second filling tank. The temperature inside the second filling tank is maintained at 80°C. The mixed wax liquid B is dripped into the wax cup through the second filling line until the wax cup is full. Then the wax cup is allowed to stand and cool naturally to 20°C to solidify. The prepared tea wax is denoted as A3.

[0079] Example 4

[0080] (1) At 85°C and under stirring conditions, 30g of 45# Fischer-Tropsch wax, 10g of 52# Fischer-Tropsch wax, 5g of 60# Fischer-Tropsch wax, 5g of hydrocracked oil, 50g of 52# semi-refined petroleum wax, 0.2g of gardenia fragrance oily essential oil and 0.2g of oil-soluble green dye are mixed and melted in a wax melting tank, and the temperature is maintained at 85°C until the materials are mixed evenly to obtain mixed wax liquid A;

[0081] (2) At 85°C and under stirring conditions, 30g of 45# Fischer-Tropsch wax, 10g of 52# Fischer-Tropsch wax, 5g of 60# Fischer-Tropsch wax, 5g of hydrocracked oil, 50g of semi-refined petroleum wax, 0.2g of gardenia essential oil and 0.2g of oil-soluble green dye are mixed and melted in a wax melting tank, and the temperature is maintained at 80°C until the materials are mixed evenly to obtain mixed wax liquid B;

[0082] (3) Inject the mixed wax liquid A into the first filling tank, maintain the temperature inside the first filling tank at 70°C, and drip the mixed wax liquid A into the wax cup through the first filling line until the wax cup is filled to 60% of its volume. Then turn on the air cooling device to cool the tea wax in the wax cup until it is formed at 20°C to obtain a semi-finished tea wax.

[0083] (4) The wax cup is transferred to the second filling line, and the mixed wax liquid B is injected into the second filling tank. The temperature inside the second filling tank is maintained at 65°C. The mixed wax liquid B is dripped into the wax cup through the second filling line until the wax cup is full. Then the wax cup is allowed to stand and cool naturally to 20°C to solidify. The prepared tea wax is denoted as A4.

[0084] Example 5

[0085] This embodiment is implemented according to the method described in Embodiment 1. The difference is that in step (3), the mixed wax liquid A is dripped into the wax cup through the first filling line until 10% of the wax cup volume is filled. The mixed wax liquid B is dripped into the wax cup through the second filling line until the wax cup is full. Then the wax cup is left to stand and cool naturally to 20°C to form. The resulting tea wax is denoted as A5.

[0086] Comparative Example 1

[0087] (1) At 85°C and under stirring conditions, 60g of 45# Fischer-Tropsch wax, 20g of 52# Fischer-Tropsch wax, 10g of 60# Fischer-Tropsch wax and 10g of hydrocracking oil are mixed and melted in a wax melting tank, and the temperature is maintained at 80°C until the materials are mixed evenly to obtain a mixed wax liquid.

[0088] (2) The mixed wax liquid is injected into the first filling tank, and the temperature inside the first filling tank is maintained at 70°C. The mixed wax liquid A is dripped into the wax cup through the first filling line until the wax cup is full. Then, the air-cooling device is turned on to cool the tea wax in the wax cup until it is formed at 20°C. The prepared tea wax is denoted as D-A1.

[0089] Comparative Example 2

[0090] This comparative example was carried out according to the method described in Example 1, except that hydrocracked oil was not added in steps (1) and (2). The prepared tea wax is designated as D-A2.

[0091] Comparative Example 3

[0092] The raw materials for preparing the synthetic wax candles provided in this comparative example include, by weight, 22.5% 50#FT Fischer-Tropsch synthetic wax, 22.5% 58#FT Fischer-Tropsch synthetic wax, 45% hydrogenated cottonseed oil, 9% soft wax, 0.5% fragrance, and 0.5% oil-locking agent. The 50#FT Fischer-Tropsch synthetic wax has a melting point of 50°C and a penetration of 8; the 58#FT Fischer-Tropsch synthetic wax has a melting point of 58°C and a penetration of 10.

[0093] S1: Preheat the tire membrane with the wick attached to it to 50°C, and set the tire membrane aside;

[0094] S2: Mix and melt the weighed FT Fischer-Tropsch synthetic wax, hydrogenated cottonseed oil, soft wax and oil-locking agent to form mixed wax a;

[0095] S3: Mixed wax a is mixed with dye and fragrance at a temperature of 100℃ and stirred evenly to form mixed wax b;

[0096] S4: Mixed wax b at 90°C is injected into the fetal membrane, cooled at 30°C, and demolded to form a synthetic wax candle. The prepared candle is designated as D-A3.

[0097] Comparative Example 4

[0098] The refined Fischer-Tropsch wax with a melting point of 70°C and a penetration of 11 and the Fischer-Tropsch wax with a melting point of 43°C and a penetration of 35 were mixed and heated in a weight ratio of 75:25 until homogeneous. The resulting candle is designated as D-A4.

[0099] Comparative Example 5

[0100] This comparative example was carried out according to the method described in Example 1, except that only 45# Fischer-Tropsch wax was added in steps (1) and (2).

[0101] Test Example 1

[0102] This test example uses the appearance, penetration, and flame height of the tea wax and candles prepared in Examples 1-5 and Comparative Examples 1-4. The results are as follows: Figure 1 , Figure 2 As shown in Table 1.

[0103]

[0104] As shown in Table 1, the tea waxes prepared in preferred Examples 1 and 2 exhibited low shrinkage, no hollow areas, and moderate flame height. The products and their combustion performance met the national standards GB / T 42385-2023 "Fire Safety Specifications for Candles" and QB / T4359-2012 "Tea Wax Candles," and were also relatively inexpensive. Example 3 incorporated a higher grade wax, resulting in higher hardness but also a larger shrinkage rate, leading to hollow areas in the tea wax. Example 4 included semi-refined petroleum wax, significantly increasing costs compared to Examples 1 and 2. In Examples 5 and Comparative Examples 1 and 3, the large difference in the amount added in the two dripping containers, and the use of only one dripping container, respectively, resulted in hollow areas in the tea wax. Furthermore, Comparative Example 3 incurred unnecessary costs due to the higher price of the raw materials used. In Comparative Example 2, the absence of hydrocracked oil resulted in significant hollow areas and high penetration in the tea wax, making it softer and more easily deformed. In Comparative Example 4, due to the use of only a single dripping vessel and a large amount of high-melting-point wax, the shrinkage rate was high, resulting in larger hollow areas. Furthermore, the final tea wax produced had a flame height of only 1.7 cm and a penetration of 22, making it prone to deformation and further increasing costs. In Comparative Example 5, because only 45# wax was used, the prepared tea wax had an excessively high penetration, making it prone to deformation and difficult to use.

[0105] The preferred embodiments of the present invention have been described in detail above; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various technical features in any other suitable manner. These simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A tea wax composition, characterized in that, Based on the total weight of the tea wax composition, the tea wax composition contains 10-95% by weight of 45# Fischer-Tropsch wax, 1-30% by weight of 52# Fischer-Tropsch wax, 1-30% by weight of 60# Fischer-Tropsch wax and 3-30% by weight of hydrocracked oil.

2. The tea wax composition according to claim 1, characterized in that, Based on the total weight of the tea wax composition, the tea wax composition contains 40-80% by weight of 45# Fischer-Tropsch wax, 10-20% by weight of 52# Fischer-Tropsch wax, 10-20% by weight of 60# Fischer-Tropsch wax and 10-20% by weight of hydrocracked oil.

3. The tea wax composition according to claim 1 or 2, characterized in that, The tea wax composition also contains 70# Fischer-Tropsch wax and / or 80# Fischer-Tropsch wax; Preferably, based on the total weight of the tea wax composition, the content of 70# Fischer-Tropsch wax is 0.5-10% by weight, and the content of 80# Fischer-Tropsch wax is 0.5-10% by weight.

4. The tea wax composition according to any one of claims 1-3, characterized in that, The tea wax composition also contains fragrance and / or dye; Preferably, the content of the fragrance is 0.1 to 5% by weight, based on the total weight of the tea wax composition; Preferably, the dye content is 0.1 to 2% by weight, based on the total weight of the tea wax composition.

5. The tea wax composition according to any one of claims 1-4, characterized in that, Fischer-Tropsch waxes are hydrocarbons synthesized by Fischer-Tropsch synthesis, obtained through hydrogenation and fractionation to produce Fischer-Tropsch waxes with different melting points and distillation ranges; and / or, The hydrocracked oil is a hydrocarbon synthesized by Fischer-Tropsch, which is hydrotreated, isomerized / cracking and pyrolyzed, and then fractionated to obtain an oil phase component with a distillation range ≥300℃.

6. A method for preparing tea wax according to any one of claims 1-5, characterized in that, The method includes the following steps: (1) Mix and melt 45# Fischer-Tropsch wax, 52# Fischer-Tropsch wax, 60# Fischer-Tropsch wax, hydrocracked oil, and optionally 70# Fischer-Tropsch wax, 80# Fischer-Tropsch wax, fragrance and dye, and maintain the temperature at 70-85℃ to obtain mixed wax liquid A; (2) Mix and melt 45# Fischer-Tropsch wax, 52# Fischer-Tropsch wax, 60# Fischer-Tropsch wax, hydrocracked oil, and optionally 70# Fischer-Tropsch wax, 80# Fischer-Tropsch wax, fragrance and dye, and maintain the temperature at 65-80℃ to obtain mixed wax liquid B; (3) The mixed wax liquid A is injected into the first filling tank, the temperature inside the first filling tank is maintained at 60-80°C, the mixed wax liquid A is dripped into the wax cup through the first filling line, and then cooled and shaped to obtain semi-finished tea wax. (4) The wax cup is transferred to the second filling line, and the mixed wax liquid B is injected into the second filling tank. The temperature inside the second filling tank is maintained at 55-75°C. The mixed wax liquid B is dripped into the wax cup through the second filling line and then cooled and shaped.

7. The method according to claim 6, characterized in that, In steps (3) and (4), the material used in step (1) accounts for 50-90% of the total material usage, so that the volume ratio of the prepared mixed wax liquid A to the prepared mixed wax liquid B is 1-9:

1.

8. The method according to claim 7, characterized in that, The volume ratio of the prepared mixed wax liquid A to the prepared mixed wax liquid B is 1.5 to 8:

1.

9. The method according to any one of claims 6-8, characterized in that, In steps (1) and (2), the melting temperature is 80–90°C.

10. The method according to any one of claims 6-9, characterized in that, In steps (3) and (4), the cooling conditions include a temperature of 15–25°C and a time of 10–15 min.

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