Burning incense with Yongchun fingered citron tea as spice and manufacturing method of burning incense

Abstract

The invention discloses burning incense with Yongchun fingered citron tea as spice and a manufacturing method of the burning incense, and belongs to the technical field of daily chemical industry. The burning incense taking the Yongchun fingered citron tea as the spice comprises the following raw materials in percentage by mass: 30-60% of Yongchun fingered citron tea powder, 15-30% of nanmu powder, 5-15% of bamboo charcoal powder, 5-15% of tea leaf residue activated carbon and 1-5% of agilawood powder. According to the incense, the Yongchun fingered citron tea is used as the core spice, no chemical essence is added, the tea fragrance is fresh, natural, lasting and rich, and the use experience of a user can be improved. The raw materials adopted by the incense are all natural plant materials, no harmful gas is released during combustion, and the requirements for health and environmental protection are met.

Description

Technical Field

[0001] This invention relates to the field of daily chemical technology, and in particular to an incense made with Yongchun Buddha's Hand tea as a fragrance and its preparation method. Background Technology

[0002] Incense is widely popular for the pleasant sensation it releases during combustion, and as a core component of the fragrance industry, it has made significant progress in recent years driven by the rapid development of the global fragrance economy. Currently, most tea-scented products are made from chemically synthesized tea flavorings, not natural plant materials, and often suffer from harsh, unnatural aromas and poor fragrance longevity. Furthermore, the combustion process of incense involves a series of complex reactions, including pyrolysis, dry distillation, synthesis, and distillation, producing fumes containing various organic compounds, including polycyclic aromatic hydrocarbons (PAHs), benzene compounds, total volatile organic compounds (TVOC), and heavy metal compounds—all inhalable toxic and harmful substances. With the resurgence of the traditional incense industry, the potential health risks posed by pollutants such as particulate matter, formaldehyde, and benzene compounds released have attracted widespread attention, and related research is ongoing. These pollutants not only seriously threaten human health but also restrict the sustainable development of the incense industry and the expansion of product application scenarios. Therefore, developing new natural, long-lasting, and low-toxicity incense products to reduce health hazards has become an urgent need for the industry's development. Summary of the Invention

[0003] The purpose of this invention is to provide an incense made with Yongchun Buddha's Hand tea as a spice and its preparation method, so as to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides the following solution: One of the technical solutions of the present invention is an incense made with Yongchun Buddha's Hand tea as a fragrance, wherein the raw materials, by mass percentage, include: 30-60% Yongchun Buddha's Hand tea powder, 15-30% Nanmu powder, 5-15% bamboo charcoal powder, 5-15% tea residue activated carbon and 1-5% agarwood powder.

[0005] Preferably, the incense raw materials further include 1-5% functional excipients; The functional excipients include one or more of the following: jujube seed powder, mugwort powder, and poria cocos powder.

[0006] Preferably, the method for preparing the activated carbon from tea residue includes the following steps: The tea leaves were carbonized under a protective atmosphere to obtain carbonized products. The carbonized product is mixed with a strong alkali and activated under a protective atmosphere to obtain an activated product. The activated product is impregnated in an acidic solution to obtain the activated carbon from tea residue.

[0007] Preferably, the carbonization temperature is 350~450℃ and the time is 2~3h; The mass ratio of the carbonization product to the strong alkali is (2.5~3.5):1; The strong base includes potassium hydroxide and / or sodium hydroxide; The activation treatment is performed at a temperature of 600-700℃ for 2-3 hours. The concentration of the acid solution is 3~4 mol / L; The immersion temperature is 40~60℃ and the time is 20~30min.

[0008] The activated carbon prepared from tea residue in this invention has advantages such as high porosity and large specific surface area, which allows it to adsorb the gases generated during combustion, thereby achieving a smokeless effect during the burning of incense.

[0009] The second technical solution of the present invention: a method for preparing the above-mentioned incense, comprising the following steps: After the raw materials for incense are mixed evenly, water and binder are added and mixed evenly to obtain incense paste; The incense paste is kneaded, shaped, dried, and aged to obtain the incense.

[0010] Preferably, the kneading includes three kneadings and three restings.

[0011] Preferably, the molding pressure is 0.3~0.5 MPa.

[0012] Preferably, the formed product is incense sticks or incense coils; The length of the incense stick is 8-10cm and the diameter is 1.5-3mm; the diameter of the incense coil is 10cm or 15cm.

[0013] Preferably, the drying process includes: first drying for 12 hours under conditions of 60-70% ambient humidity and 22-24°C, and then drying to a moisture content of 8-10% under conditions of 40-50% ambient humidity and 26-28°C.

[0014] Preferably, the aging process includes: placing the tea leaves together with fresh Yongchun Buddha's Hand tea in a sealed container at a temperature of 15-20°C for 30-60 days.

[0015] This invention uses Yongchun Buddha's Hand Tea as the main fragrance ingredient and produces incense with a fresh Buddha's Hand Tea flavor, long-lasting and rich aroma, according to the natural incense making process. It solves the problems of existing tea fragrance products that rely on chemical fragrances, have unnatural aromas, pose safety hazards, and have poor durability. It improves the naturalness, safety, aroma comfort and fragrance duration of the incense.

[0016] The present invention discloses the following technical effects: (1) The incense of the present invention uses Yongchun Buddha's Hand Tea as the core fragrance, without the addition of chemical fragrances. The tea fragrance is fresh, natural, long-lasting and rich, which can enhance the user experience.

[0017] (2) The incense used in this invention is made from natural plant materials, and no harmful gases are released when it burns, which meets the requirements of health and environmental protection.

[0018] (3) The incense of the present invention can burn completely without open flame or extinguishing, and the fragrance lasts for more than 30% longer than that of traditional tea fragrance products.

[0019] (4) This invention makes full use of Yongchun’s local specialty Buddha’s Hand tea resources, expands the application scenarios of tea, directly drives tea farmers to increase their income and become rich, and promotes the integration of local specialty industries. Detailed Implementation

[0020] Various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, features, and embodiments of the present invention.

[0021] It should be understood that the terminology used in this invention is merely for describing particular embodiments and is not intended to limit the invention. Furthermore, with respect to numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Every smaller range between any stated value or intermediate value within a stated range, and any other stated value or intermediate value within said range, is also included in this invention. The upper and lower limits of these smaller ranges may be independently included or excluded from the range.

[0022] Unless otherwise stated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. While only preferred methods and materials have been described herein, any methods and materials similar or equivalent to those described herein may be used in the implementation or testing of this invention. All references to this specification are incorporated by way of citation to disclose and describe methods and / or materials associated with those references. In the event of any conflict with any incorporated reference, the content of this specification shall prevail.

[0023] Various modifications and variations can be made to the specific embodiments described in this specification without departing from the scope or spirit of the invention, as will be apparent to those skilled in the art. Other embodiments derived from this specification will also be obvious to those skilled in the art. This specification and embodiments are merely exemplary.

[0024] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0025] It should be noted that any aspects not described in detail in this invention are conventional practices in the field and are not the focus of this invention.

[0026] This invention discloses an incense made with Yongchun Buddha's Hand tea as a fragrance. By mass percentage, the raw materials include: 30-60% Yongchun Buddha's Hand tea powder, 15-30% Phoebe zhennan powder, 5-15% bamboo charcoal powder, 5-15% tea residue activated carbon, and 1-5% agarwood powder.

[0027] In some embodiments of the present invention, the raw materials for incense also include 1-5% functional excipients; Functional excipients include one or more of the following: jujube seed powder, mugwort powder, and poria powder.

[0028] In some embodiments of the present invention, the preparation of Yongchun Buddha's Hand tea powder includes: grinding Yongchun Buddha's Hand tea (lightly fragrant type, moisture content of 7%, no mold, no off-odor, tea polyphenol content of 18.2%) in an oven at 50°C for 2 hours (to stimulate the unique orchid and fruit fragrance of Buddha's Hand tea and enhance the aroma layering), and passing it through a 100-mesh sieve to obtain Yongchun Buddha's Hand tea powder; The preparation of Phoebe zhennan wood powder includes: sterilizing Phoebe zhennan wood (Phoebe zhennan branches and trunks produced locally in Yongchun) at 120℃ for 30 minutes (which ensures stickiness and reduces impurity residue), drying to a moisture content of 7%, grinding, and passing through a 100-mesh sieve to obtain Phoebe zhennan wood powder; The preparation of bamboo charcoal powder includes: firing moso bamboo (old moso bamboo from Yongchun that is over 3 years old) under a protective atmosphere (temperature 500℃, time 3h), grinding it, and passing it through an 80-mesh sieve to obtain bamboo charcoal powder; bamboo charcoal powder can enhance odor adsorption and combustion-aiding effects. The preparation of activated carbon from tea residue includes: carbonizing tea residue under a protective atmosphere (carbonization temperature 350~450℃, time 2~3h) to obtain carbonized product; mixing the carbonized product and a strong alkali at a mass ratio of (2.5~3.5):1, and activating the mixture under a protective atmosphere (temperature 600~700℃, time 2~3h) to obtain activated product; immersing the activated product in an acid solution with a concentration of 3~4mol / L (temperature 40~60℃, time 20~30min), washing, drying, grinding, and passing through a 100-mesh sieve to obtain activated carbon from tea residue. The preparation of agarwood powder includes: taking fresh agarwood leaves, blanching them under steam at 100~110℃, drying them at 55~65℃ for 20~24h, pulverizing them, and passing them through an 80-mesh sieve to obtain agarwood powder; The preparation of jujube seed powder includes: drying jujube seeds in an oven at 70℃, pulverizing the jujube seeds with a pulverizer, and passing them through an 80-mesh sieve to obtain jujube seed powder; jujube seed powder, in combination with Buddha's Hand tea and agarwood powder, is suitable for use in sleep scenarios; The preparation of mugwort powder includes: drying mugwort leaves (locally grown mugwort in Yongchun) in an oven at 70℃, grinding them, and passing them through a 100-mesh sieve to obtain mugwort powder; the mugwort powder does not affect the aroma of tea and has a mild mosquito-repellent effect. The preparation of Poria cocos powder includes: selecting high-quality Poria cocos pieces that are firm and white in color, washing off surface impurities with clean water, removing the outer skin, cutting into small pieces, drying in a 50℃ oven, grinding, and passing through a 100-mesh sieve to obtain Poria cocos powder; Poria cocos powder can improve the moisture-proof properties of incense and prevent mold growth. In some embodiments of the present invention, the strong base includes potassium hydroxide and / or sodium hydroxide.

[0029] This invention discloses a method for preparing the above-mentioned incense, comprising the following steps: (1) Mix the raw materials for incense evenly, add 35-40% water by weight of the raw materials and 5% binder (sodium alginate) by weight of the raw materials, mix evenly and knead (knead and rest three times: knead until the surface is smooth the first time, and rest for 10-15 minutes; knead until the surface is smooth the second time, and rest for 10-15 minutes; knead until the surface is smooth the third time, and rest for 10-15 minutes) to obtain incense paste; kneading can enhance the density of the incense blank, making the burning more even and the aroma release more gradual; (2) The incense mud is pressed into shape using a mold, then dried and aged to obtain incense.

[0030] In some embodiments of the present invention, the molding pressure is 0.3~0.5 MPa.

[0031] In some embodiments of the present invention, the molded product is incense sticks or incense coils.

[0032] The incense sticks are 8-10cm long and 1.5-3mm in diameter, with a single stick burning for 15-20 minutes, making them suitable for use in small spaces such as cars and office desks; the incense coils are 10cm or 15cm in diameter, with burning times of 2h or 4h respectively, and the edges are rounded to avoid sharp corners, fitting the home environment.

[0033] In some embodiments of the present invention, the pressure for forming incense sticks is 0.3~0.4MPa (to ensure the sticks are upright); the pressure for forming incense coils is 0.4~0.5MPa (to enhance the structural stability of the coil).

[0034] In some embodiments of the present invention, drying includes: first drying for 12 hours under conditions of 60-70% ambient humidity and 22-24°C, and then drying to a moisture content of 8-10% under conditions of 40-50% ambient humidity and 26-28°C, to avoid cracking of the fragrance or uneven drying.

[0035] In some embodiments of the present invention, aging includes: placing fresh Yongchun Buddha's Hand tea leaves (without odor or mold) together in a sealed container at a temperature of 15-20°C for 30-60 days; the aging process can achieve "cultivating fragrance with tea", allowing the tea aroma to deeply blend with other aromas.

[0036] Example 1 A method for making incense using Yongchun Buddha's Hand tea as a spice: (1) Raw material segmentation and pretreatment Preparation of Yongchun Buddha's Hand Tea Powder: Yongchun Buddha's Hand Tea (lightly fragrant type, moisture content of 7%, no mold, no off-odor, tea polyphenol content of 18.2%) is ground in an oven at 50℃ for 2 hours and then passed through a 100-mesh sieve to obtain Yongchun Buddha's Hand Tea Powder. Preparation of Phoebe zhennan wood powder: Phoebe zhennan wood (branches and trunks of Phoebe zhennan wood produced locally in Yongchun) is sterilized at 120℃ for 30 minutes, dried until the moisture content is 7%, ground, and passed through a 100-mesh sieve to obtain Phoebe zhennan wood powder; Preparation of bamboo charcoal powder: Moso bamboo (5-year-old moso bamboo in Yongchun) is fired in a nitrogen atmosphere (temperature 500℃, time 3h), then ground and passed through an 80-mesh sieve to obtain bamboo charcoal powder. Preparation of activated carbon from tea residue: Tea residue was carbonized under a nitrogen atmosphere (carbonization temperature 400℃, time 2.5h) to obtain carbonized product; the carbonized product and strong alkali (sodium hydroxide) were mixed at a mass ratio of 3:1 and activated under a nitrogen atmosphere (temperature 650℃, time 3h) to obtain activated product; the activated product was impregnated in a 4mol / L hydrochloric acid solution (temperature 50℃, time 20min), washed with deionized water until neutral, dried, ground, and passed through a 100-mesh sieve to obtain activated carbon from tea residue; Preparation of agarwood powder: Take fresh agarwood leaves, blanch them under steam at 100℃, dry them at 60℃ for 24 hours, pulverize them, and pass them through an 80-mesh sieve to obtain agarwood powder.

[0037] (2) Incense made with Yongchun Buddha's Hand Tea as a spice, the raw materials are as follows by weight percentage: 40% Yongchun Buddha's Hand Tea powder, 28% Nanmu powder, 15% bamboo charcoal powder, 15% tea residue activated charcoal and 2% agarwood powder.

[0038] (3) Mix the raw materials for burning incense evenly, add 40% water by weight of the raw materials and 5% binder (sodium alginate) by weight of the raw materials, mix evenly and knead (knead and rest three times: knead until the surface is smooth the first time and rest for 12 minutes; knead until the surface is smooth the second time and rest for 12 minutes; knead until the surface is smooth the third time and rest for 12 minutes) to obtain incense paste.

[0039] (4) Press the incense clay into incense sticks (10cm in length and 2mm in diameter) using a mold (pressure of 0.4MPa) and then dry them (first dry them for 12 hours under an ambient humidity of 70% and a temperature of 22℃, and then dry them to a moisture content of 8% under an ambient humidity of 50% and a temperature of 27℃) to obtain dried incense sticks. Finally, place them together with fresh Yongchun Buddha's Hand tea leaves (without odor or mold) at a temperature of 18℃ and seal them for 45 days to obtain linear incense.

[0040] The mass ratio of fresh Yongchun Buddha's Hand tea leaves to dried incense sticks is 1:10.

[0041] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±35s and a total burning time of 18min 25s.

[0042] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 30 seconds after ignition. The aroma is not pungent during the burning process and the aroma lingers for 182 minutes after being extinguished.

[0043] Safety indicator: Formaldehyde release during combustion is 0.01 mg / m³. 3 The release level of benzene compounds was 0.03 mg / m³. 3 It meets national safety standards for incense products.

[0044] Example 2 A method for making incense using Yongchun Buddha's Hand tea as a spice: (1) Raw material segmentation and pretreatment Preparation of Yongchun Buddha's Hand Tea Powder: Yongchun Buddha's Hand Tea (lightly fragrant type, moisture content of 7%, no mold, no off-odor, tea polyphenol content of 18.2%) is ground in an oven at 50℃ for 2 hours and then passed through a 100-mesh sieve to obtain Yongchun Buddha's Hand Tea Powder. Preparation of Phoebe zhennan wood powder: Phoebe zhennan wood (branches and trunks of Phoebe zhennan wood produced locally in Yongchun) is sterilized at 120℃ for 30 minutes, dried until the moisture content is 7%, ground, and passed through a 100-mesh sieve to obtain Phoebe zhennan wood powder; Preparation of bamboo charcoal powder: Moso bamboo (5-year-old moso bamboo in Yongchun) is fired in a nitrogen atmosphere (temperature 500℃, time 3h), then ground and passed through an 80-mesh sieve to obtain bamboo charcoal powder. Preparation of activated carbon from tea residue: Tea residue was carbonized under a nitrogen atmosphere (carbonization temperature 400℃, time 2.5h) to obtain carbonized product; the carbonized product and strong alkali (sodium hydroxide) were mixed at a mass ratio of 3:1 and activated under a nitrogen atmosphere (temperature 650℃, time 3h) to obtain activated product; the activated product was impregnated in a 4mol / L hydrochloric acid solution (temperature 50℃, time 20min), washed with deionized water until neutral, dried, ground, and passed through a 100-mesh sieve to obtain activated carbon from tea residue; Preparation of agarwood powder: Take fresh agarwood leaves, blanch them under steam at 100℃, dry them at 60℃ for 24 hours, pulverize them, and pass them through an 80-mesh sieve to obtain agarwood powder.

[0045] (2) Incense made with Yongchun Buddha's Hand Tea as a spice, the raw materials are as follows by weight percentage: 55% Yongchun Buddha's Hand Tea powder, 25% Nanmu powder, 10% bamboo charcoal powder, 5% tea residue activated charcoal and 5% agarwood powder.

[0046] (3) Mix the raw materials for burning incense evenly, add 35% water by weight of the raw materials and 5% binder (sodium alginate) by weight of the raw materials, mix evenly and knead (knead and rest three times, knead and rest for 10 minutes after the first kneading until the surface is smooth; knead and rest for 10 minutes after the second kneading until the surface is smooth; knead and rest for 10 minutes after the third kneading until the surface is smooth) to obtain incense paste.

[0047] (4) Press the incense clay into sticks (8m in length and 3mm in diameter) using a mold (pressure of 0.3MPa) and then dry them (first dry them for 12 hours under an ambient humidity of 60% and a temperature of 24℃, and then dry them to a moisture content of 10% under an ambient humidity of 50% and a temperature of 28℃) to obtain dried sticks. Finally, place them together with fresh Yongchun Buddha's Hand tea leaves (without odor or mold) at a temperature of 20℃ and seal them for 30 days to obtain linear incense.

[0048] The mass ratio of fresh Yongchun Buddha's Hand tea leaves to dried incense sticks is 1:10.

[0049] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±42s and a total burning time of 16min 34s.

[0050] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 10 seconds after ignition. The aroma is not pungent during the burning process and the aroma lingers for 305 minutes after being extinguished.

[0051] Safety indicator: Formaldehyde release during combustion is 0.05 mg / m³. 3 The release level of benzene compounds was 0.10 mg / m³. 3 It meets national safety standards for incense products.

[0052] Example 3 A method for making incense using Yongchun Buddha's Hand tea as a spice: (1) Raw material segmentation and pretreatment Preparation of Yongchun Buddha's Hand Tea Powder: Yongchun Buddha's Hand Tea (lightly fragrant type, moisture content of 7%, no mold, no off-odor, tea polyphenol content of 18.2%) is ground in an oven at 50℃ for 2 hours and then passed through a 100-mesh sieve to obtain Yongchun Buddha's Hand Tea Powder. Preparation of Phoebe zhennan wood powder: Phoebe zhennan wood (branches and trunks of Phoebe zhennan wood produced locally in Yongchun) is sterilized at 120℃ for 30 minutes, dried until the moisture content is 7%, ground, and passed through a 100-mesh sieve to obtain Phoebe zhennan wood powder; Preparation of bamboo charcoal powder: Moso bamboo (5-year-old moso bamboo in Yongchun) is fired in a nitrogen atmosphere (temperature 500℃, time 3h), then ground and passed through an 80-mesh sieve to obtain bamboo charcoal powder. Preparation of activated carbon from tea residue: Tea residue was carbonized under a nitrogen atmosphere (carbonization temperature 400℃, time 2.5h) to obtain carbonized product; the carbonized product and strong alkali (sodium hydroxide) were mixed at a mass ratio of 3:1 and activated under a nitrogen atmosphere (temperature 650℃, time 3h) to obtain activated product; the activated product was impregnated in a 4mol / L hydrochloric acid solution (temperature 50℃, time 20min), washed with deionized water until neutral, dried, ground, and passed through a 100-mesh sieve to obtain activated carbon from tea residue; Preparation of agarwood powder: Take fresh agarwood leaves, blanch them under 100℃ steam, dry them at 60℃ for 24 hours, pulverize them, and pass them through an 80-mesh sieve to obtain agarwood powder; Preparation of jujube seed powder: Dry jujube seeds in an oven at 70℃, pulverize the jujube seeds with a pulverizer, and pass them through an 80-mesh sieve to obtain jujube seed powder.

[0053] (2) Incense made with Yongchun Buddha's Hand Tea as a spice, the raw materials are as follows by weight percentage: 38% Yongchun Buddha's Hand Tea powder, 28% Nanmu powder, 15% bamboo charcoal powder, 15% tea residue activated charcoal, 2% agarwood powder and 2% jujube seed powder.

[0054] (3) Mix the raw materials for burning incense evenly, add 40% water by weight of the raw materials and 5% binder (sodium alginate) by weight of the raw materials, mix evenly and knead (knead and rest three times: knead until the surface is smooth the first time and rest for 12 minutes; knead until the surface is smooth the second time and rest for 12 minutes; knead until the surface is smooth the third time and rest for 12 minutes) to obtain incense paste.

[0055] (4) Press the incense clay into incense sticks (10cm in length and 2mm in diameter) using a mold (pressure of 0.4MPa) and then dry them (first dry them for 12 hours under an ambient humidity of 70% and a temperature of 22℃, and then dry them to a moisture content of 8% under an ambient humidity of 50% and a temperature of 27℃) to obtain dried incense sticks. Finally, place them together with fresh Yongchun Buddha's Hand tea leaves (without odor or mold) at a temperature of 18℃ and seal them for 45 days to obtain linear incense.

[0056] The mass ratio of fresh Yongchun Buddha's Hand tea leaves to dried incense sticks is 1:10.

[0057] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±48s and a total burning time of 18min 42s.

[0058] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 25 seconds after ignition. The aroma is not pungent during the burning process and the aroma lingers for 205 minutes after being extinguished.

[0059] It has a calming effect and is suitable for sleep scenarios.

[0060] Safety indicator: Formaldehyde release during combustion is 0.02 mg / m³. 3 The release level of benzene compounds was 0.03 mg / m³. 3 It meets national safety standards for incense products.

[0061] Example 4 A method for making incense using Yongchun Buddha's Hand tea as a spice: (1) Raw material segmentation and pretreatment Preparation of Yongchun Buddha's Hand Tea Powder: Yongchun Buddha's Hand Tea (lightly fragrant type, moisture content of 7%, no mold, no off-odor, tea polyphenol content of 18.2%) is ground in an oven at 50℃ for 2 hours and then passed through a 100-mesh sieve to obtain Yongchun Buddha's Hand Tea Powder. Preparation of Phoebe zhennan wood powder: Phoebe zhennan wood (branches and trunks of Phoebe zhennan wood produced locally in Yongchun) is sterilized at 120℃ for 30 minutes, dried until the moisture content is 7%, ground, and passed through a 100-mesh sieve to obtain Phoebe zhennan wood powder; Preparation of bamboo charcoal powder: Moso bamboo (5-year-old moso bamboo in Yongchun) is fired in a nitrogen atmosphere (temperature 500℃, time 3h), then ground and passed through an 80-mesh sieve to obtain bamboo charcoal powder. Preparation of activated carbon from tea residue: Tea residue was carbonized under a nitrogen atmosphere (carbonization temperature 400℃, time 2.5h) to obtain carbonized product; the carbonized product and strong alkali (sodium hydroxide) were mixed at a mass ratio of 3:1 and activated under a nitrogen atmosphere (temperature 650℃, time 3h) to obtain activated product; the activated product was impregnated in a 4mol / L hydrochloric acid solution (temperature 50℃, time 20min), washed with deionized water until neutral, dried, ground, and passed through a 100-mesh sieve to obtain activated carbon from tea residue; Preparation of agarwood powder: Take fresh agarwood leaves, blanch them under 100℃ steam, dry them at 60℃ for 24 hours, pulverize them, and pass them through an 80-mesh sieve to obtain agarwood powder; Preparation of Artemisia argyi powder: Artemisia argyi leaves (Artemisia argyi grown locally in Yongchun) are dried in an oven at 70℃, ground, and passed through a 100-mesh sieve to obtain Artemisia argyi powder.

[0062] (2) Incense made with Yongchun Buddha's Hand Tea as a spice, the raw materials are as follows by weight percentage: Yongchun Buddha's Hand Tea powder 37%, Nanmu powder 28%, Bamboo charcoal powder 15%, Tea residue activated charcoal 15%, Agarwood powder 2% and Artemisia powder 3%.

[0063] (3) Mix the raw materials for burning incense evenly, add 40% water by weight of the raw materials and 5% binder (sodium alginate) by weight of the raw materials, mix evenly and knead (knead and rest three times: knead until the surface is smooth the first time and rest for 12 minutes; knead until the surface is smooth the second time and rest for 12 minutes; knead until the surface is smooth the third time and rest for 12 minutes) to obtain incense paste.

[0064] (4) Press the incense clay into incense sticks (10cm in length and 2mm in diameter) using a mold (pressure of 0.4MPa) and then dry them (first dry them for 12 hours under an ambient humidity of 70% and a temperature of 22℃, and then dry them to a moisture content of 8% under an ambient humidity of 50% and a temperature of 27℃) to obtain dried incense sticks. Finally, place them together with fresh Yongchun Buddha's Hand tea leaves (without odor or mold) at a temperature of 18℃ and seal them for 45 days to obtain linear incense.

[0065] The mass ratio of fresh Yongchun Buddha's Hand tea leaves to dried incense sticks is 1:10.

[0066] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±25s and a total burning time of 18min 35s.

[0067] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 32 seconds after ignition. The aroma is not pungent during the burning process and the aroma lingers for 189 minutes after being extinguished.

[0068] It has mosquito-repellent properties.

[0069] Safety indicator: Formaldehyde release during combustion is 0.04 mg / m³. 3 The release level of benzene compounds was 0.04 mg / m³. 3 It meets national safety standards for incense products.

[0070] Example 5 A method for making incense using Yongchun Buddha's Hand tea as a spice: (1) Raw material segmentation and pretreatment Preparation of Yongchun Buddha's Hand Tea Powder: Yongchun Buddha's Hand Tea (lightly fragrant type, moisture content of 7%, no mold, no off-odor, tea polyphenol content of 18.2%) is ground in an oven at 50℃ for 2 hours and then passed through a 100-mesh sieve to obtain Yongchun Buddha's Hand Tea Powder. Preparation of Phoebe zhennan wood powder: Phoebe zhennan wood (branches and trunks of Phoebe zhennan wood produced locally in Yongchun) is sterilized at 120℃ for 30 minutes, dried until the moisture content is 7%, ground, and passed through a 100-mesh sieve to obtain Phoebe zhennan wood powder; Preparation of bamboo charcoal powder: Moso bamboo (5-year-old moso bamboo in Yongchun) is fired in a nitrogen atmosphere (temperature 500℃, time 3h), then ground and passed through an 80-mesh sieve to obtain bamboo charcoal powder. Preparation of activated carbon from tea residue: Tea residue was carbonized under a nitrogen atmosphere (carbonization temperature 400℃, time 2.5h) to obtain carbonized product; the carbonized product and strong alkali (sodium hydroxide) were mixed at a mass ratio of 3:1 and activated under a nitrogen atmosphere (temperature 650℃, time 3h) to obtain activated product; the activated product was impregnated in a 4mol / L hydrochloric acid solution (temperature 50℃, time 20min), washed with deionized water until neutral, dried, ground, and passed through a 100-mesh sieve to obtain activated carbon from tea residue; Preparation of agarwood powder: Take fresh agarwood leaves, blanch them under 100℃ steam, dry them at 60℃ for 24 hours, pulverize them, and pass them through an 80-mesh sieve to obtain agarwood powder; Preparation of Poria cocos powder: Select high-quality Poria cocos pieces that are firm and white in color, wash off surface impurities with clean water, remove the outer skin, cut into small pieces, dry in an oven at 50℃, grind, and pass through a 100-mesh sieve to obtain Poria cocos powder.

[0071] (2) Incense made with Yongchun Buddha's Hand Tea as a spice, the raw materials are as follows by weight percentage: Yongchun Buddha's Hand Tea powder 38%, Nanmu powder 28%, bamboo charcoal powder 15%, tea residue activated charcoal 15%, agarwood powder 2% and Poria powder 2%.

[0072] (3) Mix the raw materials for burning incense evenly, add 40% water by weight of the raw materials and 5% binder (sodium alginate) by weight of the raw materials, mix evenly and knead (knead and rest three times: knead until the surface is smooth the first time and rest for 12 minutes; knead until the surface is smooth the second time and rest for 12 minutes; knead until the surface is smooth the third time and rest for 12 minutes) to obtain incense paste.

[0073] (4) Press the incense clay into incense sticks (10cm in length and 2mm in diameter) using a mold (pressure of 0.4MPa) and then dry them (first dry them for 12 hours under an ambient humidity of 70% and a temperature of 22℃, and then dry them to a moisture content of 8% under an ambient humidity of 50% and a temperature of 27℃) to obtain dried incense sticks. Finally, place them together with fresh Yongchun Buddha's Hand tea leaves (without odor or mold) at a temperature of 18℃ and seal them for 45 days to obtain linear incense.

[0074] The mass ratio of fresh Yongchun Buddha's Hand tea leaves to dried incense sticks is 1:10.

[0075] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±33s and a total burning time of 18min 29s.

[0076] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 33 seconds after ignition. The aroma is not pungent during the burning process and the aroma lingers for 182 minutes after being extinguished.

[0077] It has a moisture-proof function and shows no mold growth after being placed at room temperature (25℃, 50% humidity) for 6 months.

[0078] Safety indicator: Formaldehyde release during combustion is 0.02 mg / m³. 3 The release level of benzene compounds was 0.04 mg / m³. 3 It meets national safety standards for incense products.

[0079] Example 6 Same as Example 1, except that step (4) is as follows: the incense mud is pressed into incense coils (15mm in diameter) using a mold (pressure of 0.5MPa) and then dried (first dried for 12 hours under an ambient humidity of 70% and a temperature of 22℃, and then dried to a moisture content of 8% under an ambient humidity of 50% and a temperature of 27℃) to obtain dried incense coils. Finally, it is placed together with fresh Yongchun Buddha's Hand tea leaves (without odor or mold) at a temperature of 18℃ and sealed for 45 days. The edges are polished in an arc shape to avoid sharp corners, thus obtaining disc-shaped incense.

[0080] The mass ratio of fresh Yongchun Buddha's Hand tea leaves to dried incense sticks is 1:10.

[0081] The disc-shaped incense burns without skipping or leaving any sparks. The ash after burning is white or grayish-white, and the total burning time for a single disc is 4 hours and 5 minutes.

[0082] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 30 seconds after ignition. The aroma is not pungent during the burning process and the aroma lingers for 182 minutes after being extinguished.

[0083] Safety indicator: Formaldehyde release during combustion is 0.02 mg / m³. 3 The release level of benzene compounds was 0.03 mg / m³. 3 It meets national safety standards for incense products.

[0084] Comparative Example 1 Same as Example 1, except that the activated carbon from tea leaves is replaced with bamboo charcoal powder of the same mass percentage.

[0085] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±75s and a total burning time of 16min 25s.

[0086] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 40 seconds after ignition. The aroma is pungent during the burning process and the aroma lingers for 162 minutes after being extinguished.

[0087] Safety indicator: Formaldehyde release during combustion is 0.21 mg / m³. 3 The release level of benzene compounds was 0.25 mg / m³. 3 .

[0088] Comparative Example 2 Same as Example 1, except that the tea residue activated carbon was prepared by carbonizing the tea residue under a nitrogen atmosphere (temperature 650℃, time 3h) to obtain tea residue activated carbon.

[0089] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±82s and a total burning time of 17min 14s.

[0090] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 36 seconds after ignition. The aroma is pungent during the burning process and the aroma lingers for 168 minutes after being extinguished.

[0091] Safety indicator: Formaldehyde release during combustion is 0.16 mg / m³. 3 The release level of benzene compounds was 0.21 mg / m³. 3 .

[0092] Comparative Example 3 Same as Example 1, except that bamboo charcoal powder is replaced with an equal percentage of tea residue activated carbon by mass.

[0093] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±68s and a total burning time of 19min 42s.

[0094] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 32 seconds after ignition. The aroma is not pungent during the burning process and the aroma lingers for 178 minutes after being extinguished.

[0095] Safety indicator: Formaldehyde release during combustion is 0.07 mg / m³. 3 The release level of benzene compounds was 0.11 mg / m³. 3 .

[0096] Comparative Example 4 Same as Example 1, except that the incense using Yongchun Buddha's Hand tea as the spice has the following raw materials by weight percentage: 60% Yongchun Buddha's Hand tea powder, 10% Nanmu powder, 20% bamboo charcoal powder, 3% tea residue activated charcoal and 7% agarwood powder.

[0097] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±96s and a total burning time of 15min 16s.

[0098] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 33 seconds after ignition. The aroma is pungent during the burning process and the aroma lingers for 175 minutes after being extinguished.

[0099] Safety indicator: Formaldehyde release during combustion is 0.12 mg / m³. 3 The release level of benzene compounds was 0.14 mg / m³. 3 .

[0100] Comparative Example 5 Same as Example 1, except that step (4) is as follows: the incense mud is pressed into incense sticks (10cm in length and 2mm in diameter) using a mold (pressure of 0.4MPa) and then dried (first dried for 12 hours under an ambient humidity of 70% and a temperature of 22℃, and then dried to a moisture content of 8% under an ambient humidity of 50% and a temperature of 27℃) to obtain linear incense.

[0101] The mass ratio of fresh Yongchun Buddha's Hand tea leaves to dried incense sticks is 1:10.

[0102] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±55s and a total burning time of 18min 11s.

[0103] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 36 seconds after ignition. The aroma is not pungent during the burning process and the aroma lingers for 166 minutes after being extinguished.

[0104] Safety indicator: Formaldehyde release during combustion is 0.02 mg / m³.3 The release level of benzene compounds was 0.04 mg / m³. 3 .

[0105] Comparative Example 6 Same as Example 1, except that the preparation of Yongchun Buddha's Hand tea powder is as follows: Yongchun Buddha's Hand tea (lightly fragrant type, moisture content of 7%, no mold, no off-odor, tea polyphenol content of 18.2%) is ground and passed through a 100-mesh sieve to obtain Yongchun Buddha's Hand tea powder.

[0106] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±51s and a total burning time of 18min 24s.

[0107] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 35 seconds after ignition. The aroma is not pungent during the burning process and the aroma lingers for 176 minutes after being extinguished.

[0108] Safety indicator: Formaldehyde release during combustion is 0.02 mg / m³. 3 The release level of benzene compounds was 0.03 mg / m³. 3 .

[0109] Comparative Example 7 Same as Example 1, except that Yongchun Buddha's Hand tea powder is replaced with an equal percentage of black tea powder by mass; Preparation of dark tea powder: Dark tea (strong aroma type, moisture content of 7%, no mold, no off-odor, tea polyphenol content of 18.2%) is ground in an oven at 50℃ for 2 hours and then passed through a 100-mesh sieve to obtain dark tea powder.

[0110] Combustion performance: The linear incense burns without interruption or open flame, with a single stick burning deviation of ±94s and a total burning time of 17min 32s.

[0111] Aroma indicators: The main aroma of Buddha's Hand tea can be smelled within 37 seconds after ignition. The aroma is pungent during the burning process and the aroma lingers for 148 minutes after being extinguished.

[0112] Safety indicator: Formaldehyde release during combustion is 0.08 mg / m³. 3 The release level of benzene compounds was 0.15 mg / m³. 3 .

[0113] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An incense stick using yongchun fohshou tea as a flavoring agent, characterized in that, The raw materials include, in percentage by mass, 30-60% of Yongchun Buddha's Hand tea powder, 15-30% of Phoebe powder, 5-15% of bamboo charcoal powder, 5-15% of tea residue activated carbon, and 1-5% of agarwood powder.

2. The incense according to claim 1, wherein The raw materials of the incense further include 1-5% of functional excipients; The functional excipients include one or more of shizharen powder, mugwort powder, and poria cocos powder.

3. The incense according to claim 1, wherein The preparation method of the tea residue activated carbon includes the following steps: carbonizing the tea residue in a protective atmosphere to obtain a carbonization product; mixing the carbonization product and a strong base, and performing activation treatment in a protective atmosphere to obtain an activation product; immersing the activation product in an acid solution to obtain the tea residue activated carbon.

4. The incense according to claim 3, wherein The carbonization temperature is 350-450℃, and the carbonization time is 2-3h; The mass ratio of the carbonization product to the strong base is (2.5-3.5):1; The strong base includes potassium hydroxide and / or sodium hydroxide; The activation treatment temperature is 600-700℃, and the activation treatment time is 2-3h; The concentration of the acid solution is 3-4mol / L; The immersion temperature is 40-60℃, and the immersion time is 20-30min.

5. A method of preparing the incense according to any one of claims 1 to 4, characterized by, The method includes the following steps: mixing the raw materials of the incense, adding water and a binder, and mixing uniformly to obtain incense paste; rolling and twisting the incense paste, shaping, drying, and aging to obtain the incense.

6. The preparation method according to claim 5, characterized in that, The rolling and twisting includes three rolling and three twisting.

7. The preparation method according to claim 5, characterized in that, The shaping pressure is 0.3-0.5MPa.

8. The preparation method according to claim 7, characterized in that, The shaped product is a stick incense or a disc incense. The length of the stick incense is 8-10cm, and the diameter is 1.5-3mm; the diameter of the disc incense is 10cm or 15cm.

9. The method of claim 5, wherein, The drying includes first drying for 12h under the condition of 60-70% of ambient humidity and 22-24℃ of temperature, and then drying under the condition of 40-50% of ambient humidity and 26-28℃ of temperature until the water content is 8-10%.

10. The method of claim 5, wherein, The aging includes sealing the incense with fresh Yongchun Buddha's Hand tea leaves under the condition of 15-20℃ for 30-60 days.