Aldehyde-reducing deodorized wood-based panel and processing technology thereof

Abstract

The present application relates to the technical field of artificial board, especially to a formaldehyde-reducing and odor-removing artificial board, which comprises an artificial board and a formaldehyde-reducing and odor-removing mechanism, the formaldehyde-reducing and odor-removing mechanism is fixed on the artificial board, the artificial board comprises a grid plate, wood fibers, two plastic plates and two aluminum plates, the wood fibers are fixed inside the grid plate, two plastic plates are respectively fixed on two sides of the grid plate, and two aluminum plates are respectively fixed on two plastic plates; the formaldehyde-reducing and odor-removing mechanism is fixed on the artificial board, the formaldehyde-reducing and odor-removing mechanism comprises a plurality of barrier layers, a plurality of first purification layers and a second purification layer, and a plurality of barrier layers are equidistantly fixed on the surface of the artificial board. The present application also proposes a processing technology of the formaldehyde-reducing and odor-removing artificial board. When the present application is used, the second purification layer and the first purification layer are used to double purify the formaldehyde released by the artificial board, so as to ensure the safety of the artificial board in use.

Description

Technical Field

[0001] This invention relates to the field of engineered wood products technology, and in particular to an engineered wood product with formaldehyde-reducing and odor-removing properties and its processing technology. Background Technology

[0002] Engineered wood products are made from wood processing waste, with adhesives and other additives added and then pressed together. Most engineered wood products use urea-formaldehyde resin adhesives, which are primarily made from formaldehyde and urea, leaving a residual amount of free formaldehyde. During the use of engineered wood products, this residual formaldehyde, formaldehyde produced by the reversible decomposition of urea-formaldehyde resin, and other VOCs are released, polluting indoor air. Volatile organic compounds (VOCs) are a collective term for organic compounds with low boiling points that easily evaporate at room temperature. VOCs pollute indoor air, causing discomfort such as headaches, fatigue, and chest tightness in mild cases, and damage to the liver, brain, and nervous system in severe cases, potentially inducing leukemia and other diseases. Therefore, adopting appropriate methods to block the release of VOCs from engineered wood products, reducing indoor VOC concentrations, and mitigating their harm to human health is of great significance.

[0003] Engineered wood products are used in indoor furniture such as cabinets and beds. Since these furniture items are used indoors in small and enclosed spaces, the formaldehyde released from engineered wood products is more likely to harm the human body. Because formaldehyde has a pungent odor, it is easily detected by people. Currently, engineered wood products used only have an organic paint coating on the surface and no other structures for reducing formaldehyde and removing odors. Moreover, the organic paint coating only serves an aesthetic purpose. Therefore, there is a need for engineered wood products that reduce formaldehyde and remove odors, as well as their processing technology. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing engineered wood products that lack formaldehyde reduction and odor removal functions, and to propose an engineered wood product with formaldehyde reduction and odor removal capabilities and its processing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a formaldehyde-reducing and odor-removing engineered wood panel, comprising an engineered wood panel and a formaldehyde-reducing and odor-removing mechanism, wherein the formaldehyde-reducing and odor-removing mechanism is fixed on the engineered wood panel, wherein the engineered wood panel comprises a grid panel, wood fibers, two plastic panels and two aluminum plates, wherein the wood fibers are fixed inside the grid panel, the two plastic panels are respectively fixed on both sides of the grid panel, and the two aluminum plates are respectively fixed on the two plastic panels.

[0007] The formaldehyde reduction and odor removal mechanism is fixed on the artificial board. The formaldehyde reduction and odor removal mechanism includes multiple barrier layers, multiple first purification layers and second purification layers. The multiple barrier layers are fixed at equal intervals on the surface of the artificial board. Each first purification layer is fixed on the artificial board between two adjacent barrier layers. The second purification layer is fixed on the multiple barrier layers and the multiple first purification layers.

[0008] Preferably, the barrier layer is made of a sealant.

[0009] Preferably, both the first purification layer and the second purification layer are made of composite g-C3N4 catalyst.

[0010] Preferably, it also includes a protective layer, which is fixed on the second purification layer.

[0011] Preferably, the protective layer is made of a transparent protective film.

[0012] This invention also proposes a processing technology for formaldehyde-reducing and odor-removing engineered wood panels, comprising the following steps:

[0013] S1. Preparation of artificial boards;

[0014] The steps for preparing engineered wood panels are as follows:

[0015] A1. Press wood fibers onto a grid board using heat;

[0016] A2. Drying: Drying the wood fibers that are hot-pressed onto the grid plate;

[0017] A3. Applying adhesive: Use adhesive to glue both plastic sheets onto the grid board and wood fiber, and glue the two aluminum sheets onto the two plastic sheets respectively.

[0018] A4. Molding: Press two aluminum plates onto two plastic plates using a hot press;

[0019] A5. Other treatments: After the shaped artificial boards are unloaded from the hot press, they undergo a cooling and moisture content balancing stage.

[0020] S2. Remove dust from the surface of the artificial board using dust removal equipment;

[0021] S3. Apply multiple barrier layers at equal intervals to the surface of the artificial board;

[0022] S4. A first purification layer is applied to the surface of the artificial board between two adjacent barrier layers;

[0023] S5. Apply the second purification layer onto multiple barrier layers and multiple first purification layers.

[0024] The present invention proposes a formaldehyde-reducing and odor-removing engineered wood panel and its processing technology, the beneficial effects of which are as follows: When the formaldehyde-reducing and odor-removing engineered wood panel is used, multiple barrier layers are used to block the surface of the engineered wood panel, preventing formaldehyde in the engineered wood panel from escaping through the multiple barrier layers. The formaldehyde in the engineered wood panel is concentrated and emitted through the space between two adjacent barrier layers. Furthermore, a first purification layer is set at the space between two adjacent barrier layers to purify the formaldehyde emitted between the two adjacent barrier layers. Then, a second purification layer is used to wrap the multiple barrier layers and the multiple first purification layers, and the second purification layer is used to purify the formaldehyde that was not completely purified by the first purification layer, ensuring the safety of the engineered wood panel during use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a formaldehyde-reducing and odor-removing engineered wood panel proposed in this invention;

[0026] Figure 2 This invention proposes a formaldehyde-reducing and odor-removing engineered wood product. Figure 1 Top view at point AA;

[0027] Figure 3 This invention proposes a formaldehyde-reducing and odor-removing engineered wood product. Figure 1 Top view at point BB.

[0028] In the diagram: 1. Mesh panel; 2. Barrier layer; 3. First purification layer; 4. Second purification layer; 5. Protective layer; 6. Wood fiber; 7. Plastic board; 8. Aluminum board. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Example 1

[0031] Reference Figure 1 and 2 A formaldehyde-reducing and odor-removing engineered wood panel includes a grid panel 1, wood fibers 6, two plastic panels 7, and two aluminum plates 8. The wood fibers 6 are fixed inside the grid panel 1. The grid panel 1 ensures the hardness of the formaldehyde-reducing and odor-removing engineered wood panel and presses the wood fibers 6 inside the grid panel 1, which not only limits the wood fibers 6 on the grid panel 1 but also reduces the amount of glue used. The two plastic panels 7 are fixed on both sides of the grid panel 1, and the two aluminum plates 8 are fixed on the two plastic panels 7. The two plastic panels 7 and the two aluminum plates 8 are fixed with environmentally friendly glue, which reduces the amount of formaldehyde in the glue.

[0032] It also includes a formaldehyde-reducing and odor-removing mechanism, which is fixed on the artificial board. The formaldehyde-reducing and odor-removing mechanism is used to purify the formaldehyde released by the artificial board during use, thereby ensuring people's safety. The formaldehyde-reducing and odor-removing mechanism includes multiple barrier layers 2, multiple first purification layers 3, and second purification layers 4. The multiple barrier layers 2 are fixed at equal intervals on the surface of the artificial board. The multiple barrier layers 2 are evenly fixed on two aluminum plates 8. The barrier layers 2 are made of a sealant. When the barrier layers 2 made of the sealant are in use, the formaldehyde released by the artificial board cannot pass through the barrier layers 2, and can only be released from the position between two adjacent barrier layers 2.

[0033] Each first purification layer 3 is fixed to the engineered wood panel between two adjacent barrier layers 2. The first purification layer 3 is positioned between the two adjacent barrier layers 2, effectively purifying the formaldehyde released from the engineered wood panel. The second purification layer 4 is fixed to multiple barrier layers 2 and multiple first purification layers 3. Both the first purification layer 3 and the second purification layer 4 are made of composite g-C3N4 catalyst. When used, the composite g-C3N4 catalyst has a wider absorption spectrum, allowing it to perform photocatalysis under ordinary visible light without the need for ultraviolet light. Furthermore, compared to TiO2, g-C3N4 is more effective at activating molecular oxygen, generating superoxide radicals for the photocatalytic conversion of organic functional groups and the photocatalytic degradation of organic pollutants. This makes it more suitable for indoor air pollution control and organic matter degradation, with higher photocatalytic efficiency. The first purification layer 3 and the second purification layer 4 made of composite g-C3N4 catalyst can decompose formaldehyde into a large amount of non-toxic and harmless carbon dioxide and water.

[0034] It also includes a protective layer 5, which is fixed to the second purification layer 4. The protective layer 5 is made of a transparent protective film. The transparent protective film 5 not only prevents damage to the second purification layer 4, but also does not affect light blocking, that is, it does not affect the normal use of the first purification layer 3 and the second purification layer 4.

[0035] Working principle: When using this formaldehyde-reducing and odor-removing engineered wood panel, multiple barrier layers 2 are used to block the surface of the engineered wood panel, preventing formaldehyde from escaping through the barrier layers 2. The formaldehyde in the engineered wood panel is concentrated and released through the space between two adjacent barrier layers 2. A first purification layer 3 is set at the space between two adjacent barrier layers 2 to purify the formaldehyde emitted between the two adjacent barrier layers 2. A second purification layer 4 is then used to wrap the multiple barrier layers 2 and the multiple first purification layers 3, and to purify any formaldehyde that was not completely purified by the first purification layer 3, ensuring the safety of the engineered wood panel during use.

[0036] Example 2

[0037] Based on Example 1, as another preferred embodiment of the present invention, the difference from Example 1 is that the present invention also proposes a processing technology for formaldehyde-reducing and odor-removing engineered wood panels, including the following steps:

[0038] S1. Preparation of artificial boards;

[0039] The steps for preparing engineered wood panels are as follows:

[0040] A1. Press the wood fiber 6 onto the grid plate 1; fix the wood fiber 6 inside the grid plate 1 and compact the wood fiber 6 in the grid of the grid plate 1. This not only fixes the wood fiber 6 onto the grid plate 1, but also reduces the amount of glue used. Furthermore, the surface of the compacted wood fiber 6 and the surface of the grid plate 1 are on the same horizontal plane, ensuring the flatness of the surface of the artificial board.

[0041] A2. Drying: Dry the wood fibers 6 that are hot-pressed onto the grid plate 1; remove excess moisture from the wood fibers 6 to ensure the strength of the glue bonding later.

[0042] A3. Applying adhesive: Use adhesive to glue the two plastic boards 7 onto the grid board 1 and the wood fiber 6, and glue the two aluminum plates 8 onto the two plastic boards 7 respectively.

[0043] A4. Molding: Press two aluminum plates 8 onto two plastic plates 7 using a hot press;

[0044] A5. Other treatments: After the shaped artificial boards are unloaded from the hot press, they undergo a cooling and moisture content balancing stage.

[0045] S2. Use dust removal equipment to remove dust from the surface of the artificial board; ensure the fixation of multiple barrier layers 2 and multiple first purification layers 3 in the later stage;

[0046] S3. Coat multiple barrier layers 2 at equal intervals on the surface of the artificial board; use a drying device to dry the barrier layers 2 so that the multiple barrier layers 2 are more firmly fixed on the surface of the artificial board and will not mix with the first purification layer 3 coated later. Use the barrier layers 2 to block the formaldehyde and odor emitted from inside the artificial board and let the formaldehyde and odor be discharged from the gap between two adjacent barrier layers 2.

[0047] S4. Coat the surface of the artificial board between two adjacent barrier layers 2 with a first purification layer 3; use a drying device to dry the first purification layer 3 so that multiple first purification layers 3 are more firmly fixed to the surface of the artificial board, and at the same time, there is no gap between the barrier layer 2 and the first purification layer 3. Use the first purification layer 3 to purify the formaldehyde and odor emitted from the gap between the two barrier layers 2.

[0048] S5. The second purification layer 4 is applied to the multiple barrier layers 2 and the multiple first purification layers 3. The second purification layer 4 continues to purify the formaldehyde and odors that were not completely purified by the multiple first purification layers 3, thereby ensuring the effect of reducing formaldehyde and removing odors.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A formaldehyde-reducing and odor-removing engineered wood panel, comprising an engineered wood panel and a formaldehyde-reducing and odor-removing mechanism, wherein the formaldehyde-reducing and odor-removing mechanism is fixed on the engineered wood panel, wherein the engineered wood panel comprises a grid panel (1), wood fibers (6), two plastic panels (7) and two aluminum plates (8), wherein the wood fibers (6) are fixed inside the grid panel (1), the two plastic panels (7) are respectively fixed on both sides of the grid panel (1), and the two aluminum plates (8) are respectively fixed on the two plastic panels (7); The formaldehyde reduction and odor removal mechanism includes multiple barrier layers (2), multiple first purification layers (3) and second purification layers (4). The multiple barrier layers (2) are fixed at equal intervals on the surface of the artificial board. Each first purification layer (3) is fixed on the artificial board between two adjacent barrier layers (2). The second purification layer (4) is fixed on the multiple barrier layers (2) and the multiple first purification layers (3). Both the first purification layer (3) and the second purification layer (4) are made of composite g-C3N4 catalyst.

2. The formaldehyde-reducing and odor-removing engineered wood panel according to claim 1, characterized in that, The barrier layer (2) is made of a sealing agent.

3. The formaldehyde-reducing and odor-removing engineered wood panel according to claim 1, characterized in that, It also includes a protective layer (5), which is fixed on the second purification layer (4).

4. The formaldehyde-reducing and odor-removing engineered wood panel according to claim 3, characterized in that, The protective layer (5) is made of a transparent protective film.

5. The processing technology of the formaldehyde-reducing and odor-removing engineered wood panels according to claim 1, characterized in that, Includes the following steps: S1. Preparation of artificial boards; S2. Remove dust from the surface of the artificial board using dust removal equipment; S3. Apply multiple barrier layers (2) at equal intervals to the surface of the artificial board; S4. Coat the surface of the artificial board between two adjacent barrier layers (2) with a first purification layer (3). S5. The second purification layer (4) is coated on multiple barrier layers (2) and multiple first purification layers (3).

6. The processing technology of the formaldehyde-reducing and odor-removing engineered wood panels according to claim 5, characterized in that, In step S1, the steps for preparing the artificial board are as follows: A1. Press wood fibers (6) onto the grid plate (1) using a hot press; A2. Drying: Drying the wood fibers (6) that are hot-pressed onto the grid plate (1); A3. Apply glue: Use glue to stick the two plastic boards (7) onto the grid board (1) and the wood fiber (6), and stick the two aluminum plates (8) onto the two plastic boards (7) respectively; A4. Molding: Press two aluminum plates (8) onto two plastic plates (7) using a hot press; A5. Other treatments: After the shaped artificial boards are unloaded from the hot press, they undergo a cooling and moisture content balancing stage.

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