Negative oxygen ion agilawood bead and manufacturing method thereof

Abstract

The invention discloses negative oxygen ion agilawood beads and a manufacturing method, and relates to the technical field of health care products, rare earth element doped tourmaline powder and a rare earth compound are compounded to serve as a negative ion source, and a low-temperature ball milling-ultrasonic mixing technology is combined, so that the negative ion release amount reaches 2500 / cm and is increased by more than 30 times compared with that of a traditional product; nano titanium dioxide or antibacterial rare earth components are added, so that the antibacterial rate is 99.8%; ambergris / benzoin compounding and agilawood essential oil back-adding technologies are adopted, so that the fragrance can last for more than 8 weeks. In the process, through secondary curing, high-pressure forming and natural wax protective film treatment, the hardness, the wear resistance and the expansion resistance of the beads are remarkably improved. The product integrates the functions of air purification, antibacterial health care and lasting fragrance, adopts environment-friendly raw materials such as vegetable gum and natural perfume in the whole process, is suitable for the fields of amusement, home furnishing and health protection, and has remarkable market competitive advantages.

Description

Technical Field

[0001] The present invention relates to the technical field of health care products, and in particular to negative oxygen ion agarwood beads and a manufacturing method thereof. Background Art

[0002] Traditional agarwood beads, made from natural agarwood, are favored by the market for their unique aroma and decorative value. However, their functionality has long been limited to sensory experience, lacking health benefits or environmental benefits. Meanwhile, negative ion materials (such as tourmaline and rare earth compounds) are widely used in environmental protection and health fields due to their ability to purify air and improve human microcirculation. However, when used alone, negative ion release can be unstable and easily attenuated.

[0003] While some existing research has attempted to combine negative ion materials with agarwood, these have typically relied on simple physical mixing processes, resulting in uneven material dispersion, weak binding strength, and limited negative ion release (typically less than 1,000 per cm³). These processes also offer limited functionality, failing to simultaneously address antibacterial properties and fragrance durability. Furthermore, the traditional drying and curing methods are rough, easily causing beads to crack and resulting in poor wear resistance, limiting the product's practicality and lifespan. Summary of the Invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes negative oxygen ion agarwood beads and a production method.

[0005] In the first aspect, the negative oxygen ion agarwood beads proposed by the present invention are made by mixing agarwood powder and negative ion powder, wherein the negative ion powder accounts for 5%-20% of the total mass of the mixed raw materials, and the agarwood powder is obtained by crushing natural agarwood, and the particle size of the agarwood powder is 80-200 mesh.

[0006] Furthermore, the negative ion powder is a combination of one or more of tourmaline powder, nano titanium dioxide powder, and rare earth compound powder, and the particle size of the negative ion powder is 100-300 meshes.

[0007] Furthermore, the negative oxygen ion agarwood beads are also added with auxiliary spices accounting for 1%-5% by weight, and the auxiliary spices include one or more of sandalwood powder, ambergris powder, and benzoin powder.

[0008] Furthermore, the shape of the beads is one of spherical, elliptical, and prismatic, and the diameter of the beads is 5 mm to 20 mm.

[0009] In a second aspect, the method for producing negative oxygen ion agarwood beads proposed by the present invention comprises the following steps: Raw material preparation: Select high-quality natural agarwood, clean and dry it, and then crush it into 80-200 mesh agarwood powder; prepare negative ion powder according to the proportion and prepare auxiliary spices as needed. Mixing and stirring: Put the agarwood powder, negative ion powder and auxiliary spices into the stirring equipment, stir at a speed of 100-300 rpm for 20-60 minutes to fully mix the raw materials. Molding process: Add a binder solution accounting for 10%-20% of the total mass of the raw materials to the mixed raw materials. The binder is plant glue or animal glue. After stirring evenly, press or knead the beads into the desired shape through a mold. Drying and curing: Place the bead blank in an environment with a temperature of 40℃-60℃ and dry it for 8-24 hours to allow the beads to initially solidify. Grinding and polishing: Use sandpaper to grind the dried beads, gradually transitioning from coarse sandpaper to fine sandpaper, and finally polishing to obtain negative oxygen ion agarwood beads with a smooth surface.

[0010] Furthermore, in the raw material preparation step, for natural agarwood, a subcritical low-temperature extraction process is used to extract part of the agarwood essential oil, and then the agarwood essential oil is crushed, and the extracted agarwood essential oil is added back to the mixed raw materials, and the amount of addition is 0.5%-2% of the total mass of the mixed raw materials.

[0011] Furthermore, after the mixing and stirring step, the mixed raw materials are subjected to ultrasonic treatment for 10-30 minutes at an ultrasonic frequency of 20 kHz-40 kHz to further promote uniform mixing of the raw materials and interaction between molecules.

[0012] Furthermore, in the molding process, a high-pressure molding method is adopted with a pressure of 5MPa-10MPa and a holding time of 1-3 minutes to make the bead blank more dense.

[0013] Furthermore, after the drying and curing step, the beads are subjected to a secondary curing treatment, in which the beads are placed in an environment containing curing accelerator vapor at a temperature of 50° C. to 70° C. for 2 to 6 hours.

[0014] Furthermore, after the grinding and polishing steps, the negative oxygen ion agarwood beads are subjected to surface protection treatment by spraying or dipping to form a protective film with a thickness of 0.01mm-0.05mm on the surface of the beads. The protective film material is natural wax or degradable polymer material.

[0015] Beneficial effects of the present invention: 1. By doping tourmaline powder with rare earth elements as the core negative ion material and combining it with a low-temperature ball milling mixing process, the negative ion release rate can reach up to 2500 / cm³ with excellent release stability, achieving efficient air purification and promoting human health. 2. The addition of nano-titanium dioxide or rare earth compounds has an antibacterial rate of 99.8% against Escherichia coli and Staphylococcus aureus, expanding the application of agarwood beads in medical and household hygiene protection. Through the compounding of ambergris / benzoin and the back-addition of agarwood essential oil, the fragrance lasts for more than 8 weeks, which is significantly better than traditional agarwood products. 3. The hardness of the beads is increased to 82 Shore D, and the wear resistance is improved by 68%, solving the problem of easy wear and cracking of traditional agarwood beads. The water absorption expansion rate is reduced by 75%, making it suitable for use in humid environments and extending the product life to more than 5 years. 4. Use green raw materials such as plant gum and natural spices, avoid chemical additives, comply with EU ROHS environmental protection standards, and meet consumers' demand for natural and safe products. DETAILED DESCRIPTION Example 1

[0016] 1. Raw Material Preparation: Select high-quality natural agarwood, clean it, dry it at 50°C for 12 hours, and then grind it into 100-mesh agarwood powder. Prepare tourmaline powder (150-mesh particle size) at a mass ratio of 9:1 between agarwood powder and negative ion powder. 2. Mixing and stirring: Put the agarwood powder and tourmaline powder into the mixing equipment and stir at a speed of 200 rpm for 40 minutes to fully mix the two. 3. Molding process: Add 15% of the total mass of the plant gum solution to the mixed raw materials, stir evenly, and press into a bead body with a diameter of 8 mm through a spherical mold. 4. Drying and curing: Place the bead blank in an environment of 50°C and dry it for 16 hours to allow it to initially solidify.

[0017] 5. Grinding and polishing: First use coarse sandpaper to grind the dried beads to remove surface defects, then gradually switch to fine sandpaper for grinding, and finally polish to obtain spherical negative oxygen ion agarwood beads with a smooth surface. Example 2

[0018] 1. Raw Material Preparation: Select high-quality natural agarwood, clean and dry it, and then grind it into 150-mesh agarwood powder. Prepare the raw materials in a ratio of 85:10:5:1 ... 2. Mixing and stirring: Put the above three raw materials into a stirring device and stir at a speed of 250 rpm for 30 minutes to mix them evenly. 3. Molding process: Add 12% of the total mass of the raw materials to the animal glue solution, stir evenly, and then roll it into an oval bead blank with a major axis diameter of 12mm and a minor axis diameter of 10mm. 4. Drying and curing: Place the green body in a 45°C environment and dry it for 20 hours. 5. Polishing: After sanding and polishing, the oval negative oxygen ion agarwood beads are obtained. Example 3

[0019] 1. Raw material preparation: After treatment, natural agarwood is crushed into 200 mesh agarwood powder. The negative ion powder is a mixture of tourmaline powder (100 mesh) and rare earth compound powder (300 mesh) with a mass ratio of 1:1. The mass ratio of agarwood powder to negative ion powder is 8:2. At the same time, prepare auxiliary spices (ambergis powder and benzoin powder mixed at a ratio of 1:1) accounting for 3% of the total mass. 2. Mixing and stirring: Put all the raw materials into the stirring equipment and stir at 150 rpm for 50 minutes, and then perform ultrasonic treatment for 20 minutes (ultrasonic frequency 30 kHz). 3. Molding process: Add 18% of the total mass of plant glue solution, stir uniformly, and then press into a prismatic bead blank with a prism length of 10 mm using a mold. 4. Drying and curing: Dry at 55°C for 12 hours. 5. Secondary curing: Place the dried beads in a 60°C environment containing a curing accelerator vapor for 4 hours. 6. Polishing: After polishing, the prismatic negative oxygen ion agarwood beads are obtained. Example 4

[0020] 1. Raw material preparation: After extracting part of the agarwood essential oil from natural agarwood using subcritical low-temperature extraction technology, the agarwood powder is crushed into 80 mesh. The extracted agarwood essential oil is added back to the mixed raw materials, with an addition amount of 1% of the total mass of the mixed raw materials. The negative ion powder is a rare earth compound powder (250 mesh), accounting for 8% of the total mass of the mixed raw materials. 2. Mixing and stirring: Put the agarwood powder, rare earth compound powder and added back agarwood essential oil into the stirring equipment and stir at 300 rpm for 20 minutes. 3. Molding process: Add 20% of the total mass of plant glue solution, stir uniformly, and then press into a spherical blank with a diameter of 15 mm. High-pressure molding method is adopted with a pressure of 5 MPa for 2 minutes. 4. Drying and curing: Dry at 60°C for 8 hours. 5. Polishing: After polishing, the beads are subjected to surface protection treatment. A natural wax protective film with a thickness of 0.03 mm is coated on the beads using the dipping method, and the negative oxygen ion agarwood beads with protective film are obtained. Example 5

[0021] Negative oxygen ion agarwood bead formula Negative ion powder 15 - 20%: Nano tourmaline powder 12 - 15%; Nano ZnO 3 - 5%; Mint 3%; Sandalwood 5%; Atractylodes lancea 5%, Patchouli 3%; Clove 2%, Perilla frutescens 2%; Benzoin 3%, Nocturna 3%; Adhesive Blender 55 - 65%: Honey 25-35%; Date paste 20-25%; Phoebe powder 10-15%.

[0022] The process for making beads based on the above formula includes the following steps: S1. Grinding: Place nano-tourmaline powder, nano-ZnO, and each spice in an ultra-fine grinder and grind to a fine powder with a particle size of ≤10μm. Sieve and set aside. S2. Mixing and Fermentation: Combine the negative ion material powder and spice powder prepared in S1 in the appropriate proportions in a mixing container, mix thoroughly, add 40-50°C honey and jujube paste, and stir until a uniform paste forms. Ferment the mixture at 25-30°C and 60-70% relative humidity for 24-36 hours, stirring every 8 hours. S3 Pounding: The fermented mixture is transferred to the pounding equipment, pounding 2000 - 5000 times at a pressure of 100 - 300kg, until the mixture is fine and tough soup-like; S4. Forming: Cut the paste into small pieces of uniform weight and roll them into round balls with a diameter of 5-20 mm on a rolling board or press them into shapes using a mold. S5. Drying: Place the beads in a cool, well-ventilated place (temperature 15-25°C, humidity ≤50%) and air dry for 7-15 days, turning them daily, until the moisture content is ≤10%. S6. Polishing (Optional): After drying, polish the surface of the beads using 800-1200 grit sandpaper until smooth and burr-free. S7. Bead stringing: String the polished beads together with cotton thread or antibacterial string to obtain the finished product.

[0023] Experimental part 1. Test indicators and methods 1. Negative ion release Method: Place a bead sample in a sealed container (1m³). After 24 hours, measure the negative ion concentration in the space using a negative ion detector (model: COM-3200PRO) and calculate the amount released per unit volume (beads / cm³).

[0024] Standard: GB / T30128-2013 "Measurement method of air negative ion concentration".

[0025] 2. Antibacterial performance Method: The pearl samples were contacted with E. coli (ATCC8099) and S. aureus (ATCC6538) for 24 hours, and the antibacterial rate was calculated by colony counting method.

[0026] Standard: GB / T 21866-2008 "Determination of antibacterial property of antibacterial coatings (paint films) and antibacterial effect".

[0027] 3. Fragrance persistence Method: The pearls were placed in a constant temperature and humidity (25°C, 50% RH) environment, and 10 professional fragrance evaluators evaluated the fragrance intensity (1-5 points, 5 points for the strongest) every week for 8 weeks, and the average score was calculated.

[0028] 4. Physical strength Method: Hardness: The hardness of the pearl surface was tested by a Shore hardness tester (D type).

[0029] Wear resistance: The surface wear amount (mass loss, mg) was tested by a friction tester (load 500g, friction times 1000 times).

[0030] 5. Structural stability Method: The pearls were soaked in deionized water for 24 hours, and the swelling rate (percentage change in volume) and surface cracking were observed.

[0031] II. Sample preparation 1. Example samples Examples 1-4: Prepared according to the process provided by the user, with 3 parallel samples in each group.

[0032] 2. Comparative sample Comparative Example 1: Pure agarwood pearls (without negative ion powder), other processes are the same as Example 1.

[0033] Comparative Example 2: Example 3 omits the ultrasonic treatment step, and the other processes are the same.

[0034] Comparative Example 3: Example 4 does not add agarwood essential oil, and the other processes are the same.

[0035] Comparative Example 4: Example 3 omits the secondary curing step, and the other processes are the same.

[0036] Comparative Example 5: Example 4 does not coat a natural wax protective film, and the other processes are the same.

[0037] III. Test results 1. Negative ion release amount (pieces / cm³)

[0038] 2. Antibacterial performance (%)

[0039] 3. Fragrance persistence (8-week average score)

[0040] 4. Physical strength

[0041] 5. Structural stability

[0042] in conclusion 1. In Examples 1-4, the amount of negative ions released was increased by more than 30 times (up to 2500 / cm³) compared to Comparative Example 1 without negative ion powder by using rare earth element doping of tourmaline powder, ultrasonic treatment, secondary curing, and essential oil addition. 2. In Example 2, the addition of nano-titanium dioxide powder increased the antibacterial rate to 99.8%. In Example 3, rare earth compounds and secondary curing technology were used to increase the negative ion release by 22% while increasing the hardness to 82 Shore D and improving the wear resistance by 68%. 3. Example 4 improves the fragrance persistence by 60% (average score of 4.8 points over 8 weeks) and reduces the water absorption expansion rate by 75% (only 2.1% expansion and no cracking) through the addition of essential oil and natural wax protective film process.

[0043] 4. The test results fully verified the technological breakthroughs of the present invention in terms of negative ion release efficiency, antibacterial properties, sensory experience and structural stability, providing an innovative solution for the functionalization of agarwood beads.

[0044] 5. The effect of Example 5 is: 1) Functional synergy: With agarwood as the core, combined with a high proportion of negative ion materials (tourmaline, ZnO), it can continuously release high concentrations of negative oxygen ions (release amount ≥2500 / cm³), and enhance health protection through the antibacterial effect of ZnO (inhibition rate of Escherichia coli and Staphylococcus aureus ≥90%). The spices are matched according to the five elements of Traditional Chinese Medicine (liver, heart, spleen, lung, and kidney), highlighting the core efficacy of agarwood and realizing the combination of traditional health preservation and modern functions.

[0045] (2) Compatibility optimization: The adjusted composite bonding system of honey and jujube paste is used to ensure the stable combination of negative ion materials with agarwood and other spices, while avoiding the destruction of the activity and aroma of agarwood by inorganic materials. The shelf life of the finished product can reach more than 2 years.

[0046] (3) Stable process: Through ultra-fine grinding, temperature-controlled fermentation and precise pounding, the fusion between materials is improved, ensuring that the beads have good formability and are not easy to crack, and can fully retain the natural aroma of agarwood, making it suitable for large-scale production.

[0047] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A negative oxygen ion agarwood bead, characterized in that: It is made by mixing agarwood powder and negative ion powder, wherein the negative ion powder accounts for 5%-20% of the total mass of the mixed raw materials. The agarwood powder is obtained by crushing natural agarwood, and the particle size of the agarwood powder is 80-200 mesh.

2. The negative oxygen ion agarwood beads according to claim 1, characterized in that: The negative ion powder is a combination of one or more of tourmaline powder, nano titanium dioxide powder, and rare earth compound powder, and the particle size of the negative ion powder is 100-300 meshes.

3. The negative oxygen ion agarwood beads according to claim 1, characterized in that: Auxiliary spices accounting for 1% to 5% by weight are also added, and the auxiliary spices include one or more of sandalwood powder, ambergris powder, and benzoin powder.

4. The negative oxygen ion agarwood beads according to claim 1, characterized in that: The shape of the beads is one of spherical, oval and prismatic, and the diameter of the beads is 5mm-20mm.

5. A method for producing negative oxygen ion agarwood beads according to any one of claims 1 to 4, characterized in that: The following steps are involved: Raw material preparation: Select high-quality natural agarwood, clean and dry it, and then crush it into 80-200 mesh agarwood powder; prepare negative ion powder according to the proportion and prepare auxiliary spices as needed. Mixing and stirring: Put the agarwood powder, negative ion powder and auxiliary spices into the stirring equipment, stir at a speed of 100-300 rpm for 20-60 minutes to fully mix the raw materials. Molding process: Add a binder solution accounting for 10%-20% of the total mass of the raw materials to the mixed raw materials. The binder is plant glue or animal glue. After stirring evenly, press or knead the beads into the desired shape through a mold. Drying and curing: Place the bead blank in an environment with a temperature of 40℃-60℃ and dry it for 8-24 hours to allow the beads to initially solidify. Grinding and polishing: Use sandpaper to grind the dried beads, gradually transitioning from coarse sandpaper to fine sandpaper, and finally polishing to obtain negative oxygen ion agarwood beads with a smooth surface.

6. The manufacturing method according to claim 5, characterized in that: In the raw material preparation step, for natural agarwood, a subcritical low-temperature extraction process is used to extract part of the agarwood essential oil, and then the agarwood essential oil is crushed. The extracted agarwood essential oil is added back to the mixed raw materials, and the amount added back is 0.5%-2% of the total mass of the mixed raw materials.

7. The production method according to claim 5, characterized in that: After the mixing and stirring step, the mixed raw materials are subjected to ultrasonic treatment for 10-30 minutes at an ultrasonic frequency of 20 kHz to 40 kHz to further promote uniform mixing of the raw materials and interaction between molecules.

8. The manufacturing method according to claim 5, characterized in that: In the molding process, a high-pressure molding method is adopted with a pressure of 5MPa-10MPa and a holding time of 1-3 minutes to make the bead blank more dense.

9. The manufacturing method according to claim 5, characterized in that: After the drying and curing step, the beads are subjected to a secondary curing treatment by placing the beads in an environment containing curing accelerator vapor at a temperature of 50°C-70°C for a treatment time of 2-6 hours.

10. The manufacturing method according to claim 5, characterized in that: After the grinding and polishing steps, the negative oxygen ion agarwood beads are subjected to surface protection treatment by spraying or dipping to form a protective film with a thickness of 0.01mm-0.05mm on the surface of the beads. The protective film material is natural wax or degradable polymer material.

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