Anti-deformation self-dealdehyde antibacterial bamboo board and manufacturing process thereof

Abstract

The application discloses a kind of anti-deformation self-dealdehyde antibacterial bamboo board and its manufacturing process, including substrate layer, and the veneer layer for decoration, the substrate layer is equipped with self-dealdehyde layer, the self-dealdehyde layer is equipped with a plurality of dealdehyde device, the dealdehyde device is composed of dealdehyde round bar, connecting head and bamboo charcoal bag;The anti-deformation self-dealdehyde antibacterial bamboo board provided by the application is combined by substrate layer and self-dealdehyde layer, not only can make the hardness of the board itself of the present application, not easy to deform, but also can remove formaldehyde in the board, and its greatly shorten the volatilization time of formaldehyde after decoration is completed, and the process proposed in the present application, the board is dried and glued, and then pressed to make self-dealdehyde layer completely wrap and fix dealdehyde device, and the activated carbon in dealdehyde device has the function of moisture-proof and degerming.

Description

Technical Field

[0001] This invention relates to the field of formaldehyde-removing board technology, specifically to a deformation-resistant, self-removing, formaldehyde-removing, and antibacterial bamboo board and its manufacturing process. Background Technology

[0002] With increasing awareness of environmental protection and health, people are placing higher demands on decoration and renovation materials. Effectively removing formaldehyde during renovation has always been a major challenge. Although many formaldehyde removal products and companies exist on the market, utilizing technologies such as photocatalysis and ozone to treat indoor formaldehyde to some extent, these technologies only target formaldehyde on object surfaces and free formaldehyde already released into the air. While the short-term effects are indeed significant, they cannot eradicate formaldehyde from within the materials. Over time, the formaldehyde levels inside the materials rebound, and since the volatilization cycle of formaldehyde can last 3-15 years, these technologies cannot achieve sustained and effective formaldehyde removal, thus failing to address the root cause of indoor formaldehyde problems. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a deformation-resistant, formaldehyde-removing, and antibacterial bamboo board and its manufacturing process, which solves the problem that existing formaldehyde removal technologies cannot completely remove formaldehyde from the inside of the material.

[0004] The present invention is achieved through the following technical solution.

[0005] The present invention provides a deformation-resistant, formaldehyde-removing, and antibacterial bamboo board, comprising a substrate layer and a decorative veneer layer, wherein the substrate layer contains a formaldehyde-removing layer and the formaldehyde-removing layer contains a plurality of formaldehyde removal devices.

[0006] Furthermore, the formaldehyde removal device consists of a formaldehyde removal rod, a connector, and a bamboo charcoal bag.

[0007] Furthermore, the formaldehyde-removing rod is made of a circular hollow tube with a diameter of 5-8 mm. The circular hollow tube has a closed structure, and several densely packed pinhole-sized vent holes are provided on both ends of the main body of the circular hollow tube. The circular hollow tube has multiple independent spaces set according to its length, and the length of each independent space is controlled between 2-5 cm. Each independent space is separated by a partition, and each partition has several vent holes. Each space is filled with a solid formaldehyde-removing agent.

[0008] Furthermore, the connectors are divided into various types such as corner connectors, T-joint connectors, and four-way connectors according to different connection directions. Multiple formaldehyde-removing round rods 14 are connected and combined into a rectangular ring through the connectors 15.

[0009] Furthermore, an activated carbon bamboo charcoal bag is placed inside each of the rectangular rings, and the bamboo charcoal bag is fixed to the formaldehyde-removing round rod by a strap.

[0010] The manufacturing process of a self-deforming, formaldehyde-removing, and antibacterial bamboo board is also disclosed, including the following steps:

[0011] S1: Select bamboo shavings generated during the bamboo product manufacturing process as the base material for the self-removing formaldehyde layer.

[0012] S2: Dry the bamboo shavings using a drying device;

[0013] S3: Place the dried bamboo shavings into a mixer, add glue and mix;

[0014] S4: The substrate, bamboo shavings, and formaldehyde removal device are pressed together into one unit;

[0015] S5: Trim and sand the edges of the pressed sheet material:

[0016] S6: Apply a decorative finish to the surface of the board.

[0017] Furthermore, in step two, the drying temperature is controlled between 60-80℃, and the moisture content of the bamboo shavings particles is controlled between 8%-12% through drying.

[0018] Furthermore, in step three, applying adhesive: the adhesive used is environmentally friendly, and it is added to the mixer in small amounts multiple times, with a total application volume of 120-150 kg / m3.

[0019] Furthermore, in step four: during pressing, first lay a substrate on the base plate of the press, then lay a layer of bamboo shavings particles with a thickness of about 2cm on the substrate, and then press the first layer of bamboo shavings particles by the press at a temperature of 90℃, a pressure of 9MPa, and a pressing time of 30s.

[0020] Further, the assembled formaldehyde removal devices are evenly placed on the surface of the first layer of bamboo shavings. Then, bamboo shaving particles are laid on the formaldehyde removal devices. During the laying process, the gaps in the formaldehyde removal devices and the gaps between each formaldehyde removal device are filled by continuous patting and vibration. The thickness of the shavings is spread evenly to be about 2-3 cm higher than the surface of the formaldehyde removal devices. Then, another substrate board is laid on the surface. After completing the above steps, the material is pressed again with a press at a temperature of 80-120℃, a pressure of 9-17MPa, and a pressing time of 15-35 minutes.

[0021] The beneficial effects of this invention are as follows: The anti-deformation, formaldehyde-removing, and antibacterial bamboo board provided by this invention, through the combination of a substrate layer and a formaldehyde-removing layer, not only maintains the inherent hardness of the board and prevents deformation, but also removes formaldehyde from the board, significantly shortening the volatilization time of formaldehyde after decoration. Furthermore, the process proposed in this application involves drying and gluing the board, followed by pressing to ensure the formaldehyde-removing layer completely encapsulates and fixes the formaldehyde removal device. The activated carbon within the formaldehyde removal device has moisture-proof and antibacterial properties, thus keeping the board dry and preventing mold and mildew, and providing a certain degree of antibacterial effect. Moreover, the formaldehyde-removing rods are fixed-length independent units, so cutting and milling the board during later use will not damage the overall formaldehyde removal device. Even after cutting, each independent board can still retain a relatively complete formaldehyde removal system to a large extent. Additionally, the materials used in the production are scraps and waste from bamboo product processing; recycling these scraps and waste not only saves resources and controls costs but also has excellent environmental value. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of an embodiment of the present invention;

[0024] Figure 2 This is a top view of the formaldehyde removal device according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the formaldehyde-removing round rod in an embodiment of the present invention.

[0026] Figure 4 This is a process flow diagram of an embodiment of the present invention. Detailed Implementation

[0027] The following is combined with Figure 1-4 The present invention will be described in detail below. For ease of description, the directions referred to below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The directions of the projection relationship are consistent in all directions: up, down, left, right, front, and back.

[0028] In a typical embodiment: combined with the appendix Figure 1-3The aforementioned anti-deformation, self-removing formaldehyde, and antibacterial bamboo board includes a substrate layer 10 and a decorative veneer layer 11. The substrate layer 10 contains a self-removing formaldehyde layer 12, which is located at both ends of the self-removing formaldehyde layer 12. The self-removing formaldehyde layer 12 contains a formaldehyde removal device 13, which is completely enclosed by the self-removing formaldehyde layer 12.

[0029] The decorative veneer layer 11 is pasted onto the substrate layer 10. The decorative veneer layer 11 is a veneer paper with a thickness of 0.02-0.05 cm, preferably a PVC veneer paper. The front of the veneer paper can be printed with wood grain patterns or various colors and patterns to increase the decorativeness of the bamboo board.

[0030] The substrate layer 10 is made of a board with a thickness of 0.2-0.5 cm, preferably bamboo board, but synthetic MDF or solid wood board can also be used.

[0031] The self-removing formaldehyde layer 12 is made from bamboo strips and waste scraps generated during the bamboo product processing. The self-removing formaldehyde layer 12 is formed by pressing the scrap particles with the formaldehyde removal device 13.

[0032] The formaldehyde removal device 13 consists of a formaldehyde removal rod 14, a connector 15, and a bamboo charcoal bag 16.

[0033] The formaldehyde-removing rod 14 is made of a circular hollow tube with a diameter of 5-8 mm. The circular hollow tube has a closed structure, and densely packed pinhole-sized venting holes are provided on the main body and both ends of the circular hollow tube. The circular hollow tube has multiple independent spaces according to its length, and the length of each independent space is controlled between 2-5 cm. A partition is provided between each independent space, and each partition has several venting holes. Each space is filled with a solid formaldehyde-removing agent, which volatilizes through the venting holes on the formaldehyde-removing rod 14 to achieve the formaldehyde removal effect. Preferably, the formaldehyde-removing rod 14 is available in two lengths: 10 cm and 20 cm. The 20 cm long formaldehyde-removing rod 14 is divided into 8 independent spaces, each space being approximately 2.5 cm long. The 10 cm long formaldehyde-removing rod has 4 independent spaces, each space being approximately 2.5 cm long.

[0034] The formaldehyde-removing round rod 14 forms the main frame of the formaldehyde removal device 13 through the connector 15. The connector 15 can be divided into various types of connectors such as corner connectors, three-way connectors, and four-way connectors according to different connection directions. Multiple formaldehyde-removing round rods 14 are connected and combined into a rectangular ring through the connector 15.

[0035] An activated carbon bamboo charcoal bag 16 is placed inside each rectangular ring. The bamboo charcoal bag 16 is fixed to the formaldehyde removal round rod 14 by a strap. The bamboo charcoal bag 16 is preferably 5*5cm in size.

[0036] A manufacturing process for anti-deformation, self-removing, formaldehyde-removing, and antibacterial bamboo boards was also disclosed, such as... Figure 4 This includes the following steps:

[0037] S1 Material Selection: The self-formaldehyde removal layer 12 can be made from bamboo scraps produced during the production of bamboo products, or by collecting some unusable material heads and tails produced during the production of bamboo products, crushing the material heads and tails into bamboo scraps, and then removing powder, metal, sand and other impurities from the bamboo scraps through vibration screening, thereby obtaining bamboo scrap particles with a particle diameter of 3-10cm, which are used as the base material of the self-formaldehyde removal layer 12.

[0038] By collecting scraps and waste materials as the base material for the self-removing formaldehyde layer 12, not only can the material cost be saved, but also the processing cost can be reduced. The collection of scraps and waste materials greatly increases the material utilization rate, saves costs, and is environmentally friendly and energy-saving.

[0039] S2 Drying: The obtained bamboo chip particles are dried through a drying device. During the drying process, the heat needs to be uniform, and the bamboo chip particles are intermittently stirred or vibrated to achieve a uniform drying effect. The drying temperature is controlled between 60-80℃, and the purpose of drying is to control the moisture content of the bamboo chip particles between 8% and 12%.

[0040] Drying bamboo shavings can keep the inside of the board dry, preventing deformation and mold growth, and also has a certain antibacterial effect.

[0041] S3 Glue application: Place the dried bamboo shavings into a mixer, add glue, and use environmentally friendly glue, preferably urea-formaldehyde glue. Add the glue in small amounts multiple times, stirring constantly during the process to ensure that each shaving is evenly coated with glue. The total amount of glue added should be controlled at 120-150 kg / m3.

[0042] S4 Pressing: First, lay a substrate board, preferably bamboo board, on the base plate of the press. Then, spread a layer of bamboo shavings particles, about 2cm thick, on the substrate board. Next, use the press to press the first layer of bamboo shavings particles and the substrate board together at a temperature of 90℃, a pressure of 9MPa, and a pressing time of 30s. This high-temperature, high-pressure process fixes the substrate board and the bamboo shavings particles on it together. Turn the pressed substrate board over so that the side with the bamboo shavings faces upwards. Then, place the prepared formaldehyde removal device 13 on the surface of the first layer of bamboo shavings. Place an appropriate number of formaldehyde removal devices according to their size. Figure 2 Taking a standard furniture board with dimensions of 240*120cm as an example, nine formaldehyde removal devices 13 arranged in a 3*3 pattern are placed on the surface of the board. Bamboo shavings are then laid on the formaldehyde removal devices 13. During the laying process, the gaps in the formaldehyde removal devices 13 and the gaps between each formaldehyde removal device 13 are filled by continuous patting and vibration. The thickness of the bamboo shavings is spread evenly to be about 2-3cm higher than the surface of the formaldehyde removal devices 13. Then another substrate board is laid on the surface. After completion, it is pressed again with a press at a temperature of 80-120℃ and a pressure of 9-17MPa for 15-35 minutes.

[0043] Through the above technical solution, the formaldehyde removal device 13 is fixed inside the self-formaldehyde removal layer 12, and the formaldehyde removal device 13, the self-formaldehyde removal layer 12, and the substrate board form a solid whole board.

[0044] S5 Trimming and Sanding: After the pressed board has cooled naturally, the edges of the board are trimmed and cut according to the size requirements to make the board size conform to the standard size. Then the surface of the board is sanded.

[0045] Sanding makes the surface of the board smooth and flat, and allows for easy cutting to size for subsequent processing and use.

[0046] S6 Surface Finish: According to order requirements, corresponding surface finish stickers are applied to the surface of the board for decoration. The stickers not only have an aesthetic effect, but also have insect-proof and moisture-proof functions.

[0047] In summary, due to the above-mentioned process, a formaldehyde removal device 13 is installed in the middle of the board. The formaldehyde removal device is filled with a solid formaldehyde removal agent, and the surface of the formaldehyde removal device 13 is provided with several ventilation holes, so that the solid formaldehyde removal agent can evaporate into the interior of the board through the ventilation holes to decompose the formaldehyde inside the board. At the same time, the formaldehyde removal device 13 is also provided with activated carbon bamboo charcoal bags 16. Since activated carbon has the functions of moisture prevention and sterilization, it can keep the interior of the board dry, prevent the board from turning into mold and mildew, and has a certain antibacterial effect.

[0048] Each of the formaldehyde removal rods 14 in the formaldehyde removal device 13 is set as an independent unit with a length of 2-5cm, so that even if the board is cut and milled during later use, the formaldehyde removal device will not be damaged as a whole. Even after the board is cut, each independent board can still retain a relatively complete formaldehyde removal system to a large extent.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand and implement the present invention. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A manufacturing process for a self-deforming, formaldehyde-removing, and antibacterial bamboo board, wherein the self-deforming, formaldehyde-removing, and antibacterial bamboo board comprises a substrate layer (10) and a decorative veneer layer (11), characterized in that: The substrate layer (10) is provided with a self-removing formaldehyde layer (12), and the self-removing formaldehyde layer (12) is provided with a number of formaldehyde removal devices (13); the formaldehyde removal device (13) is composed of a formaldehyde removal rod (14), a connector (15) and a bamboo charcoal bag (16); the formaldehyde removal rod (14) is made of a circular hollow tube with a diameter of 5-8 mm. The circular hollow tube is a closed structure. Several dense pinhole-sized vent holes are provided on both ends of the main body of the circular hollow tube. Multiple independent spaces are set inside the circular hollow tube according to the length of the circular hollow tube. The length of each independent space is controlled between 2-5 cm. A partition is set between each independent space. Several vent holes are set on each partition. Each space is filled with a solid formaldehyde removal agent. Multiple formaldehyde-removing round rods (14) are connected and combined into a rectangular ring via the connector (15); Each of the rectangular rings contains an activated carbon bamboo charcoal bag, which is fixed to the formaldehyde removal rod (14) by a strap. The connector (15) is divided into corner connector, tee connector and four-way connector according to the different connection directions; The substrate layer is a substrate board; Includes the following steps: S1: Select bamboo shavings generated during the bamboo product manufacturing process as the base material for the self-removing formaldehyde layer. S2: Dry the bamboo shavings using a drying device; S3: Place the dried bamboo shavings into a mixer, add glue and mix; S4: The substrate board, bamboo shavings and formaldehyde removal device are pressed together into one piece. S5: Trim and sand the edges of the pressed sheet material; S6: Apply a decorative finish to the surface of the board; S4: During pressing, first lay a substrate board on the bottom plate of the press, then lay a 2cm thick layer of bamboo shavings after gluing on the substrate board, and then press the first layer of bamboo shavings by the press. The pressing temperature is 90℃, the pressure is 9MPa, and the pressing time is 30s. The assembled formaldehyde removal devices are evenly placed on the surface of the first layer of bamboo shavings. Then, bamboo shaving particles are laid on the formaldehyde removal devices. During the laying process, the gaps in the formaldehyde removal devices and the gaps between each formaldehyde removal device are filled by continuous patting and vibration. The thickness of the bamboo shavings is spread evenly to be 2-3 cm higher than the surface of the formaldehyde removal devices. Then, another substrate board is laid on the surface. After completing the above steps, it is pressed again with a press. The pressing temperature is 80-120℃, the pressure is 9-17MPa, and the pressing time is 15-35 minutes.

2. The manufacturing process of a deformation-resistant, formaldehyde-removing, and antibacterial bamboo board according to claim 1, characterized in that: In step S2, the drying temperature is controlled between 60-80℃, and the moisture content of the bamboo shavings particles is controlled between 8%-12% through drying.

3. The manufacturing process of a deformation-resistant, formaldehyde-removing, and antibacterial bamboo board according to claim 1, characterized in that: The S3 adhesive application: The adhesive used is environmentally friendly and is added to the mixer in small amounts multiple times. The total amount of adhesive applied is 120-150 kg / m³.

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