Impregnated bond paper veneer blockboard

Abstract

The utility model provides a laminated wood board with an impregnated bond paper veneer, which comprises a combined core material, an upper middle board, a lower middle board, an upper recombined decorative single board, a lower recombined decorative single board, an upper veneer layer and a lower veneer layer, and is characterized in that the combined core material is provided with a horizontal upper surface and a horizontal lower surface; the combined core material comprises a core material body and a plurality of plastic straight strips, the plastic straight strips are inserted into the core material body in a sealed mode, and the multiple plastic straight strips are arranged at intervals; the upper middle plate and the lower middle plate are respectively pressed and attached to the upper surface and the lower surface of the combined core material; the upper-layer recombined decorative veneer and the lower-layer recombined decorative veneer are respectively pressed and attached to the upper surface and the lower surface of the upper middle plate and the lower middle plate; the upper facing layer and the lower facing layer are respectively pressed on the upper surface and the lower surface of the upper recombined decorative veneer and the lower surface of the lower recombined decorative veneer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of artificial board manufacturing, and particularly relates to an impregnated glue film paper veneer plywood. BACKGROUND

[0002] At present, solid wood artificial boards are widely used in home decoration, and especially impregnated glue film paper veneer plywood has become a mainstream choice in home decoration due to its relatively low cost and high aesthetic appearance. However, in actual application, the impregnated glue film paper veneer plywood is susceptible to deformation and cracking due to changes in temperature and humidity. In particular, in dry or extreme climate environments, cracks are prone to occur on the surface of the board due to stress concentration, affecting the service life and aesthetic appearance of the board. SUMMARY

[0003] The utility model aims at providing impregnated glue film paper veneer plywood to solve the problems of poor cracking resistance and high scrap rate in the prior art.

[0004] The utility model provides an impregnated glue film paper veneer plywood, which comprises

[0005] A combined core material has a horizontal upper surface and a lower surface, and comprises a core material body and a plurality of plastic straight strips, wherein the plastic straight strips are sealingly inserted into the core material body, and the plurality of plastic straight strips are arranged at intervals.

[0006] An upper middle plate and a lower middle plate are respectively attached to the upper surface and the lower surface of the combined core material.

[0007] An upper layer of reconstituted decorative veneer and a lower layer of reconstituted decorative veneer are respectively attached to the upper surface and the lower surface of the upper middle plate and the lower middle plate.

[0008] An upper surface layer and a lower surface layer are respectively attached to the upper surface and the lower surface of the upper layer of reconstituted decorative veneer and the lower layer of reconstituted decorative veneer.

[0009] In some embodiments, the plurality of plastic straight strips are each independently selected from PP, PET or PVC materials.

[0010] In some embodiments, the upper middle plate and the lower middle plate are made of eucalyptus or poplar, and have a thickness of 2.0-3.2 mm.

[0011] In some embodiments, the upper layer of reconstituted decorative veneer and the lower layer of reconstituted decorative veneer comprise three pieces of reconstituted decorative veneer.

[0012] In some embodiments, the reconstituted decorative veneer is subjected to hydrogen peroxide softening treatment.

[0013] In some embodiments, the upper and lower decorative layers are melamine impregnated film papers.

[0014] In some embodiments, a plurality of slots are formed on the core body, extending from top to bottom through the core body, and the slots are adapted for insertion of plastic straight strips, so that the plastic straight strips are arranged vertically through the core body from top to bottom.

[0015] In some embodiments, the upper side of the core body is formed with a plurality of upper slots extending from top to bottom, the upper slots being sealed with upper plastic straight strips inserted therein, and the lower side of the core body is formed with a plurality of lower slots extending from bottom to top, the lower slots being sealed with lower plastic straight strips inserted therein, and the plurality of upper and lower plastic straight strips are evenly spaced on the core body.

[0016] In some embodiments, the plastic straight strips are evenly spaced on the core body.

[0017] In some embodiments, the upper and lower plastic straight strips are arranged in axial correspondence. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure profile of the impregnated film paper faced plywood provided for Example 1;

[0019] Figure 2 Structure profile of the impregnated film paper faced plywood provided for Example 2;

[0020] In some embodiments, a plurality of slots are formed on the core body, extending from top to bottom through the core body, and the slots are adapted for insertion of plastic straight strips, so that the plastic straight strips are arranged vertically through the core body from top to bottom. DETAILED DESCRIPTION Example 1

[0021] Please refer to Figure 1The utility model provides a kind of impregnated glue film paper veneer plywood, the impregnated glue film paper veneer plywood includes combined core material, upper middle plate 21 and lower middle plate 22, upper layer reassembled decorative veneer 31 and lower layer reassembled decorative veneer 32, upper layer facing layer 41 and lower layer facing layer 42;The combined core material has horizontal upper surface and lower surface, the combined new material includes core material body 1 and multiple plastic straight strips 100, the plastic straight strip 100 is vertically sealed from top to bottom and is arranged through core material body, and the plastic straight strip 100 is sealed and is installed on core material body 1, and multiple plastic straight strips 100 are arranged at intervals;In this way, vertical straight strip 100 structure can more evenly disperse the stress applied to the surface of plate material to the whole plate material interior;Since vertical arrangement straight strip provides better tensile and bending resistance, when facing temperature and humidity change, can effectively reduce plate material surface stress concentration, to reduce the risk of cracking. Vertical straight strip forms a stable frame structure in plate material interior. This frame can enhance the overall strength of plate material, so that it is not prone to deformation or cracking when subjected to external force or environmental stress. Compared with random arrangement or horizontal arrangement structure, the arrangement of vertical straight strip is more helpful to improve the overall stability of plate material. In vertical straight strip structure, the fiber direction of wood is consistent with the arrangement direction of straight strip, so that the natural strength characteristics of wood fiber can be maximized. Wood fiber direction consistent helps to enhance the crack resistance of plate material, because wood has higher tensile strength along the fiber direction, which can effectively resist stress caused by external environmental changes. Wood has the characteristics of thermal expansion and contraction. Vertical straight strip structure makes the direction of thermal expansion and contraction consistent with the fiber direction when the plate material is subjected to temperature change, thereby avoiding the formation of cracks due to inconsistent expansion of each part.

[0022] By adopting a kind of impregnated glue film paper veneer plywood, the crack resistance of plate material is effectively improved. Specifically, the impregnated glue film paper veneer plywood adopts a combined core material formed by plastic straight strips (such as PP, PET, PVC, etc.) and Chinese fir and poplar, and a veneer combination single board for re-pasting composed of three reassembled decorative veneers and melamine impregnated glue film paper. Through this unique multi-layer structure design, the plate material can better cope with the change of environmental stress and avoid the generation of cracking. In addition, the use of veneer combination single board for re-pasting improves the uniformity of surface adhesion, reduces appearance defects such as bubbles and wrinkles, and thus reduces the rate of defective products. Therefore, the ecological board of the utility model has significant advantages in terms of aesthetics, service life and production cost

[0023] Optionally, the plurality of plastic straight strips are each independently selected from PP, PET, or PVC materials. Among them, those skilled in the art know that PP (polypropylene) has excellent fatigue resistance and chemical resistance, and is suitable for application scenarios that require long-term stress bearing. PET (polyethylene terephthalate) has good heat resistance and mechanical strength, and is suitable for use in high-temperature environments. PVC (polyvinyl chloride) has excellent flame retardance and corrosion resistance, and can be used in environments with high fireproofing requirements. By selecting the appropriate material according to the specific use environment, the overall performance of the board can be optimized, enhancing its durability and adaptability.

[0024] The upper and lower middle plates 21 and 22 are respectively pressed and attached to the upper and lower surfaces of the combined core material. By arranging the middle plates (such as eucalyptus or poplar) in a horizontal and vertical staggered manner on the upper and lower surfaces of the combined core material, the overall strength and rigidity of the board can be improved. This structural design ensures that the core material does not deform when subjected to vertical stress, while providing better bending and compression resistance, allowing the board to maintain a stable shape over a long period of use. The upper and lower layers of reconstituted decorative veneer 31 and 32 are respectively pressed and attached to the upper and lower surfaces of the upper and lower middle plates 21 and 22.

[0025] The upper and lower surface layers are respectively pressed and attached to the upper and lower surfaces of the upper and lower layers of reconstituted decorative veneer. Optionally, the upper and lower middle plates 21 and 22 are made of eucalyptus or poplar. In some embodiments, the thickness of the upper and lower middle plates 21 and 22 is 2.0-3.2mm

[0026] Optionally, the upper and lower layers of reconstituted decorative veneer 31 and 32 include three layers of reconstituted decorative veneer, which is softened by hydrogen peroxide treatment to improve the finishing effect, reduce finishing defects, and significantly improve the anti-cracking performance of the board.

[0027] Optionally, the upper and lower surface layers 41 and 42 are melamine impregnated film paper. Melamine impregnated film paper has excellent wear resistance, scratch resistance, heat resistance, and water resistance, and can provide a strong and beautiful surface protection layer for the board. The use of this material can significantly improve the surface quality and service life of the board, and is particularly suitable for application environments that require high durability.

[0028] Optionally, a plurality of slots are formed on the core body 1, which penetrate the core body from top to bottom, and are suitable for the insertion of plastic straight strips. By pre-providing slots on the core body, the precise positioning and stable installation of the plastic straight strips can be ensured. This design not only simplifies the production process and reduces manufacturing errors, but also ensures the uniformity of the straight strip arrangement, further improving the overall quality and structural performance of the board.

[0029] Optionally, the plastic straight bars are evenly spaced on the core body. The evenly spaced plastic straight bars help ensure that the stress inside the board is evenly distributed, reducing the risk of cracking caused by stress concentration. Evenly arranged can also improve the overall stability of the board, so that it can bear evenly when facing external pressure, thereby prolonging the service life of the board. The ecological board of the present application enhances its bending resistance and compression resistance by adopting a multi-layer structure design and a vertical straight bar combined core, ensuring the stability of the board in various environments. By selecting plastic straight bars made of different materials, the adaptability of the board is further optimized, allowing it to perform well in a variety of application scenarios. In addition, the combination of reconstituted decorative veneer and melamine impregnated film paper not only improves the appearance and durability of the board, but also reduces the rate of defective products during production, reducing production costs. These advantages make the ecological board have broad application prospects in the field of home decoration and construction. Example 2

[0030] Please refer to Figure 2 The structure of the present embodiment is basically the same as that of example 1, the only difference is that the structure of the combined core is different, the upper side of the core body 1 forms a plurality of upper slots extending from top to bottom, the upper slots are sealed and inserted with upper plastic straight bars 101, the lower side of the core body forms a plurality of lower slots extending from bottom to top, the lower slots are sealed and inserted with lower plastic straight bars 102, and the plurality of upper plastic straight bars 101 and lower plastic straight bars 102 are evenly spaced on the core body 1. Compared with the single board provided in the example, the single board provided in the present embodiment inserts less plastic to obtain similar effects.

[0031] Among them, the upper plastic straight bar 101 and the lower plastic straight bar 102 are arranged in axial correspondence one by one, and the stress of the board can be counteracted up and down to achieve the effect of anti-deformation.

Claims

1. An impregnated film-faced plywood panel, characterised in that, The impregnated film paper veneer laminated wood board comprises a combined core material having horizontal upper and lower surfaces, the combined core material comprising a core material body and a plurality of plastic straight strips sealed and inserted into the core material body and spaced apart from each other; upper and lower middle boards respectively attached to the upper and lower surfaces of the combined core material; upper and lower layers of reconstituted decorative veneers respectively attached to the upper and lower surfaces of the upper and lower middle boards; upper and lower layers of surface layers respectively attached to the upper and lower surfaces of the upper and lower layers of reconstituted decorative veneers.

2. The impregnated film-faced plywood panel according to claim 1, wherein The plurality of plastic straight strips are independently selected from PP, PET or PVC materials.

3. The impregnated film-faced plywood panel according to claim 1, wherein The upper and lower middle boards are made of eucalyptus or poplar with a thickness of 2.0-3.2 mm.

4. The impregnated film-faced plywood panel according to claim 1, wherein The upper and lower layers of reconstituted decorative veneers each comprise three reconstituted decorative veneers.

5. The impregnated film-faced plywood panel according to claim 4, wherein The reconstituted decorative veneers are subjected to hydrogen peroxide softening treatment.

6. The impregnated film-faced plywood panel according to claim 1, wherein The upper and lower layers of surface layers are melamine impregnated film papers.

7. The impregnated film paper-faced plywood panel according to claim 1, wherein A plurality of insertion slots are formed in the core material body from top to bottom and penetrating the core material body, the insertion slots being adapted for the insertion of the plastic straight strips so that the plastic straight strips are vertically arranged in the core material body from top to bottom.

8. The impregnated film paper-faced plywood panel according to claim 1, wherein The upper side of the core material body is formed with a plurality of upper insertion slots extending from top to bottom, the upper insertion slots being adapted for the insertion of upper plastic straight strips, and the lower side of the core material body is formed with a plurality of lower insertion slots extending from bottom to top, the lower insertion slots being adapted for the insertion of lower plastic straight strips, the plurality of upper and lower plastic straight strips being uniformly and spaced apart from each other on the core material body.

9. The impregnated film paper-faced plywood panel according to claim 1, wherein, The plurality of plastic straight strips are uniformly and spaced apart from each other on the core material body.

10. The impregnated film paper-faced plywood panel according to claim 8, wherein, The upper and lower plastic straight strips are arranged in axial correspondence with each other.

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