Bamboo candlewick and aromatherapy candle
By using a bamboo core with low moisture content, tightly wound cotton thread, and a uniform wax layer, combined with various bamboo processing methods, the problem of traditional candle wicks' dependence on natural cotton has been solved, achieving a low-cost, environmentally friendly, healthy, and distinctive candle wick design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional candles rely too heavily on natural cotton for their wicks, resulting in high costs and failing to meet consumers' demand for unique designs.
It uses a bamboo core with low moisture content, tightly wound cotton thread and a uniform wax layer, combined with a variety of bamboo treatments, such as carbonization, surface coating and oil-conducting gaps, to form a stable candle wick structure.
It reduces the production cost of candle wicks, improves combustion stability and cleanliness, enhances environmental friendliness and health, and meets consumers' demand for unique features.
Smart Images
Figure CN224077312U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of candle manufacturing technology, specifically to a bamboo candle wick and a scented candle. Background Technology
[0002] In the candle manufacturing industry, the wick is crucial to the candle's burning effect and user experience. Traditional candles often use cotton wicks made from natural cotton, which are expensive and lack variety, failing to meet diverse consumer needs such as achieving special flame effects and unique appearance designs.
[0003] As the candle market develops, consumers are increasingly demanding higher quality, more affordable, and more distinctive candles. Therefore, developing new types of candle wicks is urgently needed. These wicks should reduce reliance on natural cotton to lower costs. Utility Model Content
[0004] This application aims to solve at least one technical problem existing in the prior art. To this end, the embodiments of this application provide a bamboo candle wick and a scented candle, solving the problem of excessive reliance on cotton in the production of candle wicks in the prior art.
[0005] The objective of this application can be achieved through the following technical solutions:
[0006] In a first aspect, this application provides a bamboo candle wick, the bamboo candle wick comprising:
[0007] Bamboo core; the moisture content of the bamboo core is less than 10%;
[0008] The cotton thread is combined with the bamboo core in a spiral winding manner; the cotton thread covers more than 70% of the bamboo core.
[0009] A waxed layer covers the bamboo core and cotton thread and fills the space between the bamboo core and the cotton thread.
[0010] Optionally, the bamboo core can be any of the following:
[0011] Bamboo strips with a thickness of 0.5-0.8mm and a width of 8-12mm, and the bamboo strips have a velvety layer formed by polishing the surface;
[0012] At least one bamboo strip with a diameter of 0.4-1.5mm;
[0013] At least two layers of bamboo pulp paper are folded into a column shape, with each layer having a thickness of 0.8-1.2 mm, and the thickness difference between any two layers of bamboo pulp paper does not exceed 0.2 mm. The wax impregnation layer fills the gap between adjacent bamboo pulp papers.
[0014] Optionally, the bamboo core is made of bamboo strips, and the bamboo core has multiple parallel oil guiding gaps along its length. The oil guiding gaps extend from the top end to the bottom end of the bamboo core, with an extension length of 70-90% of the total length of the bamboo core.
[0015] Optionally, the bamboo core is made of bamboo strips, and the surface of the bamboo core has a porous carbon layer formed by carbonization.
[0016] Optionally, the bamboo core is made of bamboo strips, the surface of which is covered with a layer of pine sawdust. The pine sawdust layer is evenly bonded to the surface of the bamboo strips with glutinous rice paste, and the coverage rate of the pine sawdust layer is between 70% and 90%.
[0017] Optionally, the bamboo core is made of bamboo strips, and the surface of the bamboo core is covered with a layer of potassium nitrate crystals.
[0018] Optionally, the bamboo core is made of bamboo pulp paper, consisting of at least two layers with a basis weight of 300g / m². 2 It is made of layers of natural bamboo pulp paper.
[0019] Optionally, the bamboo core is made of three layers of bamboo pulp paper folded together, with each layer of bamboo pulp paper being 1cm wide.
[0020] In a second aspect, this application provides a scented candle, which includes a wax body and a bamboo wick as described above disposed in the wax body. The axial eccentricity of the bamboo wick in the wax body is ≤1mm, the top of the bamboo wick protrudes 5±1mm above the surface of the wax body, and the width of the bamboo wick accounts for 15-25% of the width of the scented candle.
[0021] Optionally, the bottom of the bamboo core is provided with an umbrella-shaped extension. The umbrella-shaped extension is a thin sheet structure formed by hot pressing bamboo strips. Its diameter is 2-3 times larger than the width of the bamboo core, and its surface is distributed with micropores. The wax impregnation layer fills the micropores and fuses with the wax body.
[0022] The above-described one or more embodiments of this application have at least one or more of the following beneficial effects:
[0023] This application utilizes a bamboo core with low moisture content, tightly wound cotton thread, and a uniformly filled wax layer to ensure sufficient strength and stability in the wick, providing a continuous and stable flame during combustion. Compared to traditional cotton wicks, bamboo wicks are primarily made of bamboo, reducing reliance on natural cotton. Furthermore, bamboo is widely available and inexpensive, effectively lowering production costs. Simultaneously, bamboo wicks burn cleanly, producing minimal smoke and odor, and releasing fewer harmful substances, meeting environmental and health requirements and enhancing the product's market competitiveness. Attached Figure Description
[0024] The present application will be further described below with reference to the accompanying drawings.
[0025] Figure 1 This is a front view of a bamboo candle wick in one embodiment of this application;
[0026] Figure 2 This is a top view of a bamboo candle wick in one embodiment of this application.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Bamboo core; 2. Cotton thread; 3. Wax impregnation layer. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] Please see Figure 1 As shown, in some embodiments, this application provides a bamboo candle wick, which includes a bamboo core, cotton thread, and a wax impregnation layer (e.g., ...). Figure 1 (Diagram of a diagonal line).
[0031] The bamboo core 1, as the core of the candle wick, has a moisture content of less than 10%. This low moisture content design effectively prevents the candle wick from becoming moldy and deteriorating due to excessive moisture during storage and use. It also ensures more stable burning during combustion, avoiding unstable flames or extinguishing due to moisture evaporation. Specifically, in practice, the bamboo core 1 can be dried in an oven at 80℃ for at least 2 hours to reduce its moisture content to less than 5%.
[0032] The cotton thread 2 is tightly bonded to the bamboo core 1 using a spiral winding method. This winding method creates a stable connection structure between the cotton thread 2 and the bamboo core 1, with the cotton thread 2 covering more than 70% of the bamboo core 1. This high coverage enhances the friction between the cotton thread 2 and the bamboo core 1, further ensuring that they do not easily separate during combustion. Simultaneously, the cotton thread 2 also assists the bamboo core 1 in absorbing molten wax, providing a continuous fuel supply for combustion.
[0033] Specifically, the cotton thread 2 is made of degreased cotton thread, and the winding pitch of the cotton thread 2 on the bamboo core 1 is 0-1mm.
[0034] The degreased cotton thread removes grease, has better wax and water absorption, and optimized combustion performance. It can quickly absorb molten wax and ignite it rapidly, providing a stable flame source for the candle wick. In actual combustion, the degreased cotton thread enables the candle wick to ignite faster, and the flame is stable in the early stages of combustion.
[0035] Furthermore, cotton thread 2 employs a unique 3-strand S-shaped twist structure, making its structure more compact. Each strand intertwines with the others, enhancing the overall strength and stability of cotton thread 2. Each S-shaped twist structure is not a single structure, but rather composed of four cotton strands. This combination of multiple cotton strands further increases the surface area of cotton thread 2, improving its wax absorption capacity.
[0036] In one specific embodiment, the diameter of the cotton thread 2 is 0.5-1mm.
[0037] The wax layer 3 completely covers the bamboo core 1 and the cotton thread 2, and fills the gaps between them. The thickness of the wax layer 3 is 0.5 mm. The presence of the wax layer 3 not only protects the bamboo core 1 and the cotton thread 2, preventing them from carbonizing or breaking prematurely during combustion, but also provides additional fuel during combustion, making the candle wick burn more completely and stably.
[0038] Specifically, the wax impregnation layer 3 is obtained by heating paraffin wax to a liquid state, completely immersing the bamboo core 1 and cotton thread 2 for more than 2 hours, and then allowing it to solidify. Preferably, 5%-10% stearic acid can be added to the paraffin wax. Stearic acid has a combustion temperature of up to 1400℃, which can improve the brightness and temperature of the flame. In actual production, the wax impregnation layer 3 with added stearic acid can make the candle flame brighter, improve the flame lighting effect, and extend the burning time of the wick by more than 40%.
[0039] In summary, this application, through the combined action of a low-moisture bamboo core 1, tightly wound cotton thread 2, and a uniformly filled wax-impregnated layer 3, ensures that the wick possesses sufficient strength and stability, providing a continuous and stable flame during combustion. Compared to traditional cotton wicks, bamboo wicks, with bamboo as their primary material, reduce reliance on natural cotton. Furthermore, bamboo is widely available and inexpensive, effectively lowering wick production costs. Simultaneously, bamboo wicks burn cleanly, producing minimal smoke and odor, and releasing fewer harmful substances, meeting environmental and health requirements and enhancing the product's market competitiveness.
[0040] In some embodiments, the bamboo core 1 is a bamboo strip with a thickness of 0.5-0.8 mm and a width of 8-12 mm. This thickness and width design allows the bamboo strip to possess both sufficient strength and good flexibility. The surface of the bamboo strip is polished to form a fluffy layer (not shown). The presence of the fluffy layer increases the surface area of the bamboo strip, thereby improving its ability to absorb wax and also enhancing the friction between the bamboo strip and the cotton thread 2, allowing the cotton thread 2 to be more firmly wound around the bamboo strip. For example, the bamboo strip thickness is selected as 0.6 mm and the width as 10 mm.
[0041] In other embodiments, the bamboo core 1 consists of at least one bamboo filament (not shown) with a diameter of 0.4-1.5 mm. Bamboo filaments of different diameters can be selected according to actual needs; thinner filaments are easier to ignite, while thicker filaments may have better strength and stability. Using multiple bamboo filaments in combination can further enhance the strength of the wick and the wax transfer capability.
[0042] For example, the bamboo core 1 is composed of three bamboo strips with a diameter of 0.5mm. These three bamboo strips are wrapped and bound together with cotton thread 2 to firmly form the bamboo core 1. The multiple bamboo strips increase the contact area with air, resulting in more complete combustion. The thin bamboo strips are inherently flammable and can be quickly ignited in the initial stages of candle lighting, rapidly initiating the combustion process and meeting the user's need for a quick flame.
[0043] For example, the bamboo core 1 is made of a single bamboo filament with a diameter of 1.3 mm. The thicker bamboo filament burns relatively slowly, allowing the candle to burn slowly for a longer period of time.
[0044] In some embodiments, the bamboo core 1 is composed of at least two layers of bamboo pulp paper (not shown) folded into a column shape, each layer being 0.8-1.2 mm thick, and the thickness difference between any two layers of bamboo pulp paper does not exceed 0.2 mm. This uniform thickness design ensures the stability of the wick during combustion and avoids uneven combustion caused by thickness differences. The wax-impregnated layer 3 fills the gaps between adjacent bamboo pulp papers, further enhancing the connection strength between the bamboo pulp papers and also improving the wick's ability to store and transport wax.
[0045] In some embodiments, the bamboo core 1 is a bamboo strip with multiple parallel oil-guiding gaps (not shown) arranged along its length. In actual operation, the oil-guiding gaps are formed by cutting the bamboo strip with a blade or saw blade. These oil-guiding gaps extend from the top to the bottom of the bamboo core 1, with an extension length of 70-90% of the total length of the bamboo core 1. The existence of the oil-guiding gaps provides a dedicated channel for the flow of wax, allowing the wax to be transferred more quickly and smoothly from the bottom of the wick to the burning area.
[0046] For example, an oil-guiding gap is made at 1-2mm intervals along the width of the bamboo core 1. Multiple parallel oil-guiding gaps can make the wax evenly distributed in all parts of the bamboo strip, avoiding uneven burning caused by uneven wax distribution, and making the candle burn more evenly and stably.
[0047] In some embodiments, the bamboo core 1 is a bamboo strip with a porous carbon layer (not shown) formed by carbonization on its surface. In practice, the surface of the bamboo strip can be quickly charred with an open flame for 1-2 seconds until slightly charred, avoiding complete combustion. The porous carbon layer formed after carbonization can store wax, improving its wax absorption capacity. At the same time, the flammability of carbon makes the bamboo strip easier to ignite, forming a stable combustion carrier. For example, in actual combustion tests, the ignition time of the carbonized bamboo strip wick is significantly shortened, and the flame stability is greatly improved.
[0048] In some embodiments, the bamboo core 1 is a bamboo strip covered with a layer of pine sawdust. The pine sawdust layer is evenly bonded to the surface of the bamboo strip using glutinous rice paste, with a coverage rate between 70-90%. Glutinous rice paste, as a natural adhesive, not only firmly bonds the pine sawdust to the bamboo strip surface but also has good environmental performance. The presence of the pine sawdust layer increases the flammability of the candle wick, making the candle easier to light. Simultaneously, the pine sawdust generates heat during combustion, helping to maintain the burning temperature of the candle wick and making the combustion more stable.
[0049] In some embodiments, the bamboo core 1 is a bamboo strip with a potassium nitrate crystal layer covering its surface. Potassium nitrate is a strong oxidizing agent that lowers the ignition point of the candle wick, making it easier to ignite and shortening the ignition time.
[0050] In practice, the potassium nitrate crystal layer can be obtained by soaking the bamboo core 1 in a 10% potassium nitrate solution (such as 20g of potassium nitrate dissolved in 180ml of warm water) for 12 hours and then drying it. Experiments using potassium nitrate as an oxidant show that the ignition time of the treated bamboo strips is shortened to 1 / 3 of that of the untreated ones.
[0051] In some embodiments, the bamboo core 1 is bamboo pulp paper, consisting of at least two layers with a basis weight of 300g / m². 2 It is made of layers of natural bamboo pulp paper. Weight: 300g / m² 2 The design ensures that the bamboo pulp paper has sufficient strength and thickness to withstand the high temperatures and tensile forces during combustion, maintaining its structural integrity and preventing breakage during burning. At the same time, the unbleached bamboo pulp paper is environmentally friendly, meeting market demand for eco-friendly products.
[0052] In some embodiments, the bamboo core 1 is made of three layers of bamboo pulp paper folded together, each layer of bamboo pulp paper being 1 cm wide. This specific folding method and width design gives the wick good structural stability and wax transfer capability, allowing it to maintain a stable shape during combustion and preventing it from bending or deforming.
[0053] In other embodiments, the bamboo core 1 is formed by folding two layers of bamboo pulp paper, with widths of 2cm and 1cm respectively. In this case, the flame is slightly smaller compared to the bamboo core 1 formed by folding three layers of bamboo pulp paper, each 1cm wide.
[0054] In some other embodiments, the bamboo core 1 is made of three layers of bamboo pulp paper folded together, with widths of 0.8cm, 1.2cm, and 0.8cm respectively. In this case, the flame size is slightly smaller compared to a bamboo core 1 made of three layers of bamboo pulp paper folded together, each 1cm wide.
[0055] In some embodiments, this application also discloses a scented candle, which comprises a wax body and the aforementioned bamboo wick. The axial eccentricity of the bamboo wick within the wax body is ≤1mm, meaning the wick is positioned relatively centrally within the wax body, ensuring uniform consumption of the wax during combustion. The tip of the bamboo wick extends 5±1mm above the wax surface. This height design ensures the wick fully contacts the wax while preventing direct contact between the flame and the wax surface, reducing overheating and uneven melting. The width of the bamboo wick accounts for 15-25% of the scented candle's width. This proportion provides sufficient flame intensity, reducing the likelihood of flickering and extinguishing, improving the candle's safety and stability, while preventing excessively fast burning due to an overly wide wick.
[0056] In some embodiments, when the bottom end of the bamboo core 1 is further provided with an umbrella-shaped extension, the umbrella-shaped extension is a thin sheet structure formed by hot pressing bamboo strips, with a diameter 2-3 times larger than the width of the bamboo core 1. This larger diameter design increases the contact area between the wick and the wax, allowing the wick to absorb the wax more effectively, while also enhancing the connection strength between the wick and the wax, making the wick more stable during combustion and less prone to loosening or falling off. The surface of the umbrella-shaped extension is distributed with micropores, and the wax-impregnated layer 3 fills these micropores and fuses with the wax. The presence of micropores further increases the contact area between the wick and the wax, and also provides more channels for the transport of wax, allowing the wick to absorb the wax more quickly and fully, providing sufficient fuel for combustion.
[0057] The foregoing has provided a detailed description of one embodiment of this application, but the description is merely a preferred embodiment and should not be construed as limiting the scope of this application. All equivalent variations and modifications made within the scope of this application should still fall within the patent coverage of this application.
[0058] It should be noted that the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Descriptions in this application regarding directions such as "left," "right," "left side," "right side," "upper part," "lower part," "top," and "bottom" are defined based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, not to indicate or imply that the described structure must be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0059] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
Claims
1. A bamboo wick, characterized by, The bamboo wick comprises: a bamboo core body, wherein the bamboo core body has a water content less than 10%; cotton threads, which are spirally wound and combined with the bamboo core body, wherein the coverage of the bamboo core body by the cotton threads is greater than 70%; a wax layer, which covers the bamboo core body and the cotton threads and fills the gaps between the bamboo core body and the cotton threads.
2. The bamboo wick according to claim 1, wherein, The bamboo core body is any one of the following: a bamboo sheet with a thickness of 0.5-0.8 mm and a width of 8-12 mm, and the bamboo sheet has a fluff layer formed by polishing the surface; at least one bamboo filament with a diameter of 0.4-1.5 mm; at least two layers of bamboo pulp paper, which are folded into a columnar shape, and each layer has a thickness of 0.8-1.2 mm, and the thickness difference between any two layers of the bamboo pulp paper is not more than 0.2 mm, and the wax layer fills the gaps between adjacent layers of the bamboo pulp paper.
3. The bamboo wick according to claim 2, wherein, The bamboo core body is the bamboo sheet, and the bamboo core body is provided with a plurality of parallel oil guiding gaps along the length direction of the bamboo core body, and the oil guiding gaps extend from the top end to the bottom end of the bamboo core body, and the extension length is 70-90% of the total length of the bamboo core body.
4. The bamboo wick according to claim 2, wherein, The bamboo core body is the bamboo sheet, and the surface of the bamboo core body has a porous carbon layer formed by carbonization.
5. The bamboo wick according to claim 2, wherein, The bamboo core body is the bamboo sheet, and the surface of the bamboo core body is covered with a pine sawdust layer, and the pine sawdust layer is uniformly bonded and fixed to the surface of the bamboo sheet by glutinous rice paste, and the coverage of the pine sawdust layer is between 70-90%.
6. The bamboo wick according to claim 2, wherein, The bamboo core body is the bamboo sheet, and the surface of the bamboo core body is covered with a potassium nitrate crystal layer.
7. The bamboo wick according to claim 2, wherein, The bamboo core is made of bamboo pulp paper, which is composed of at least two layers of 300g / m 2 natural color bamboo pulp paper.
8. The bamboo wick according to claim 7, wherein, The bamboo core body is folded by three layers of the bamboo pulp paper, and each layer of the bamboo pulp paper has a width of 1 cm.
9. A scented candle, characterized in that, The aromatherapy candle comprises a wax body and the bamboo wick as claimed in any one of claims 1-8 arranged in the wax body, wherein the axial eccentricity of the bamboo wick in the wax body is ≤1 mm, the top end of the bamboo wick is 5±1 mm higher than the surface of the wax body, and the width of the bamboo wick accounts for 15-25% of the width of the aromatherapy candle.
10. The scented candle of claim 9, wherein, The bottom end of the bamboo core body is provided with an umbrella-shaped expansion part, which is a thin sheet structure formed by hot pressing of a bamboo sheet, has a diameter greater than 2-3 times the width of the bamboo core body, and has a plurality of micropores distributed on the surface, and the wax layer fills the micropores and is fused with the wax body.