Nonwoven fabric-based panel decoration balancing sheet

Abstract

This utility model relates to the field of decorative panel technology, and discloses a decorative balancing sheet for panels based on non-woven fabric. It includes a non-woven fabric base layer, a calcium carbonate cured layer on the upper surface of the base layer, a decorative layer on the surface of the calcium carbonate cured layer, and arrayed recesses on the lower surface of the base layer filled with activated carbon particles. A non-woven fabric bottom layer is also provided on the lower surface of the base layer. The base layer and bottom layer are bonded together with hot melt adhesive. This utility model offers the advantages of a smooth and stable surface, resistance to water absorption and wrinkling, formaldehyde absorption, and environmental friendliness.

Description

Technical Field

[0001] This utility model relates to the field of panel decoration technology, and in particular to a panel decoration balance plate based on non-woven fabric. Background Technology

[0002] In the production and application of wood-based panels, especially engineered wood-based panels, a decorative layer is usually applied to the surface to improve their aesthetics and stability. However, due to differences in moisture absorption, expansion, and contraction between the panel itself and the applied decorative layer, warping and deformation can easily occur during use, affecting their appearance and lifespan. To address this issue, a balancing sheet is typically applied to the back of the panel to cover surface defects or gaps at panel joints. Existing balancing sheets usually use engineered wood veneer (a composite of solid wood veneer and wood grain paper), which is applied to the surface of the panel using an impregnated adhesive to balance various surface defects and improve the panel's decorative properties.

[0003] However, engineered wood veneer is made by splicing together solid wood veneers. On the one hand, it consumes a lot of wood. On the other hand, in order to prevent the veneer from absorbing water and warping, the engineered wood veneer itself and the composite of engineered wood veneer and solid wood need to be impregnated with adhesive. The impregnating adhesive is used to wrap the engineered wood veneer to achieve waterproof and adhesive properties. However, the impregnating adhesive has a high formaldehyde content, which means that when the board is used as furniture, it will release formaldehyde for a long time, thus reducing the environmental protection level. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, this utility model provides a non-woven fabric-based decorative balance sheet with a smooth and stable surface, which is not easy to absorb water and wrinkle, can absorb formaldehyde, and is more environmentally friendly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A decorative balance sheet based on nonwoven fabric includes a nonwoven fabric base layer, a calcium carbonate cured layer on the upper surface of the nonwoven fabric base layer, a decorative layer on the surface of the calcium carbonate cured layer, an array of recessed cavities on the lower surface of the nonwoven fabric base layer, the cavities being filled with activated carbon particles, a nonwoven fabric bottom layer on the lower surface of the nonwoven fabric base layer, and the nonwoven fabric base layer and the nonwoven fabric bottom layer being bonded together by hot melt adhesive.

[0006] By adopting the above technical solution: using non-woven fabric as the base layer and bottom layer, and bonding it with hot melt adhesive, the quality stability and uniformity are higher than those of solid wood veneer, giving the balance sheet as a whole good toughness and stability; the calcium carbonate curing layer on the surface of the non-woven fabric base layer provides a flat and stable base for the decorative layer, and the calcium carbonate curing layer can also play a role in water and moisture blocking, and calcium carbonate itself is an environmentally friendly inorganic material with good environmental performance; the cavities on the lower surface of the non-woven fabric base layer are filled with activated carbon particles, which are encapsulated in individual cavities. When the balance sheet is combined with the board, it can absorb harmful substances such as formaldehyde and benzene released by the board, further improving the environmental performance.

[0007] Preferably, the decorative layer is configured as wood grain paper, which is bonded to the calcium carbonate cured layer by hot melt adhesive. Wood grain paper is a decorative paper with various real wood grain patterns, used in the decorative layer to give the surface of the balance sheet a real wood grain decorative effect.

[0008] Preferably, the decorative layer is configured as an inkjet-printed layer. The decorative layer is formed directly on the surface of the calcium carbonate cured layer using inkjet printing, allowing for the printing of different decorative patterns according to actual needs.

[0009] Preferably, the surface of the decorative layer is provided with a UV protective layer. The UV protective layer is an environmentally friendly transparent resin coating that forms a transparent and hard protective film on the surface of the decorative layer after being cured by ultraviolet light, thereby making the decorative layer more stable and less prone to wear and fading.

[0010] Preferably, the nonwoven base layer is configured as a spunlace nonwoven fabric with a basis weight of 80-100 g / m², and the nonwoven bottom layer is configured as a needle-punched nonwoven fabric with a basis weight of 40-55 g / m². The nonwoven base layer has a higher basis weight and a denser structure, providing structural support; the nonwoven bottom layer has a lower basis weight and is made of needle-punched nonwoven fabric, resulting in higher porosity and better air permeability, allowing the activated carbon particles to better adsorb surrounding harmful substances such as formaldehyde.

[0011] Preferably, the thickness of the calcium carbonate cured layer is 0.3-0.5 mm.

[0012] Preferably, the hot melt adhesive is polyurethane hot melt adhesive. Polyurethane hot melt adhesive is a solvent-free and environmentally friendly adhesive that does not contain solvents or water. After curing, it forms a non-toxic, odorless polymer with a cross-linked network structure that has extremely high cohesive and adhesive strength, thus making the bonding between the layers within the balance sheet very reliable and preventing delamination.

[0013] Therefore, this utility model has the beneficial effects of having a smooth and stable surface, being less prone to water absorption and wrinkling, being able to absorb formaldehyde, and being more environmentally friendly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0015] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle.

[0016] In the diagram: 1. Non-woven fabric base layer; 2. Calcium carbonate curing layer; 3. Decorative layer; 4. Activated carbon particles; 5. Non-woven fabric bottom layer; 6. Hot melt adhesive; 7. UV protection layer; 10. Cavity. Detailed Implementation

[0017] To make the technical problem to be solved, the technical solution, and the beneficial technical effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the scope of protection of the present utility model.

[0018] It should be understood that the terms "first," "second," etc., used herein are for descriptive purposes only and should not be construed as indicating or implying relative importance, nor should they be construed as implicitly specifying the number of technical features indicated. Features specified as "first" or "second" may expressly or implicitly indicate that at least one of those features is included.

[0019] like Figure 1 and Figure 2 The illustrated nonwoven fabric-based decorative balance sheet includes a nonwoven fabric base layer 1, a calcium carbonate cured layer 2 on the upper surface of the nonwoven fabric base layer 1, a decorative layer 3 on the surface of the calcium carbonate cured layer 2, an array of recessed cavities 10 on the lower surface of the nonwoven fabric base layer 1, the recessed cavities 10 being filled with activated carbon particles 4, a nonwoven fabric bottom layer 5 on the lower surface of the nonwoven fabric base layer 1, and the nonwoven fabric base layer 1 and the nonwoven fabric bottom layer 5 being bonded together by hot melt adhesive 6; and a UV protection layer 7 on the surface of the decorative layer 3.

[0020] In some embodiments, the decorative layer 3 is configured as wood grain paper, which is bonded to the calcium carbonate cured layer 2 by hot melt adhesive 6. The wood grain paper has the decorative effect of real wood grain and provides a good decorative effect when the balance sheet is combined with the board.

[0021] In some embodiments, the decorative layer 3 is configured as an inkjet-printed layer. The inkjet-printed layer is formed by inkjet printing. The calcium carbonate cured layer 2 is formed by coating the surface of the non-woven fabric base layer 1 with calcium carbonate slurry and then curing it. It is smooth and white, providing a good environment for inkjet printing. Any desired decorative pattern can be printed using inkjet printing. A UV protective layer 7 is then applied to the surface of the inkjet-printed layer to ensure that it does not fade or wear. In this embodiment, the hot melt adhesive 6 is a polyurethane hot melt adhesive.

[0022] In some embodiments, the nonwoven base layer 1 is configured as a spunlace nonwoven fabric with a basis weight of 80-100 g / m², and the nonwoven bottom layer 5 is configured as a needle-punched nonwoven fabric with a basis weight of 40-55 g / m²; the thickness of the calcium carbonate cured layer 2 is 0.3-0.5 mm. In this embodiment, the nonwoven base layer 1 is configured as a spunlace nonwoven fabric with a basis weight of 90 g / m², the nonwoven bottom layer 5 is configured as a needle-punched nonwoven fabric with a basis weight of 45 g / m², and the thickness of the calcium carbonate cured layer 2 is 0.4 mm.

[0023] Referring to the accompanying drawings, the principle of this utility model is as follows: Non-woven fabric is used as the base and bottom layer, bonded with hot melt adhesive. This results in higher quality stability and uniformity than solid wood veneer, giving the balance sheet excellent overall toughness and stability. The calcium carbonate cured layer on the surface of the non-woven fabric base provides a flat and stable substrate for the decorative layer. This layer also provides water and moisture barrier properties, and calcium carbonate itself is an environmentally friendly inorganic material with good environmental performance. Activated carbon particles are filled into the cavities on the lower surface of the non-woven fabric base. These particles are encapsulated within the cavities, allowing the balance sheet to absorb harmful substances such as formaldehyde and benzene released from the board when combined with the board, further improving environmental performance. A decorative layer is applied to the surface and protected by a UV protective layer, ensuring a long-lasting and stable decorative effect.

[0024] In the description of this utility model, it should be understood that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, and the other end are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the purpose of more clearly describing the technical solution of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0025] Although specific embodiments of the present invention are described in detail herein, they are given for illustrative purposes only and should not be construed as limiting the scope of the present invention. Various substitutions, alterations, and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A nonwoven fabric-based panel trim balance sheet comprising a nonwoven fabric base layer (1), characterized by, The upper surface of the nonwoven base layer (1) is provided with a calcium carbonate curing layer (2), the surface of the calcium carbonate curing layer (2) is provided with a decorative layer (3), the lower surface of the nonwoven base layer (1) is provided with an array of recesses (10), the recesses (10) are filled with activated carbon particles (4), the lower surface of the nonwoven base layer (1) is provided with a nonwoven bottom layer (5), and the nonwoven base layer (1) and the nonwoven bottom layer (5) are bonded together by hot melt adhesive (6).

2. The nonwoven-based panel trim balancer of claim 1, wherein, The decorative layer (3) is configured as wood grain paper, and the wood grain paper is bonded to the calcium carbonate curing layer (2) by hot melt adhesive (6).

3. The nonwoven-based panel trim balancer of claim 1, wherein, The decorative layer (3) is configured as an inkjet printing layer.

4. The nonwoven fabric-based panel trim balance sheet according to claim 1 or 2 or 3, characterized by, The surface of the decorative layer (3) is provided with a UV protection layer (7).

5. The nonwoven-based panel trim balancer of claim 1, wherein, The nonwoven base layer (1) is configured as a spunlace nonwoven fabric with a basis weight of 80-100 g / m², and the nonwoven bottom layer (5) is configured as a needle-punched nonwoven fabric with a basis weight of 40-55 g / m².

6. The nonwoven-based panel trim balancer of claim 5, wherein the nonwoven-based panel trim balancer is a nonwoven-based panel trim balancer for a vehicle. The thickness of the calcium carbonate curing layer (2) is 0.3-0.5 mm.

7. The nonwoven-based panel trim balancer of claim 1 or 2, wherein the nonwoven-based panel trim balancer is a nonwoven-based panel trim balancer for a vehicle. The hot melt adhesive (6) is a polyurethane hot melt adhesive (6).

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