HPL veneer high-performance flame-retardant solid wood composite floor

Abstract

The application relates to a high-performance flame-retardant solid wood composite floor with HPL finishing, which comprises a base material, a flame-retardant layer and a finishing layer, the flame-retardant layer comprises a kraft paper layer and a phenolic resin layer, the kraft paper layer is connected with the phenolic resin layer, the flame-retardant layer is located between the base material and the finishing layer, the flame-retardant layer is connected with the base material, and the flame-retardant layer is connected with the finishing layer. The application has the effect of improving the flame-retardant performance of the composite floor.

Description

Technical Field

[0001] This application relates to the field of composite flooring, and more particularly to a high-performance flame-retardant solid wood composite floor with HPL finish. Background Technology

[0002] Composite flooring is a type of flooring. However, composite flooring involves artificially altering the natural structure of the flooring material to achieve certain physical properties that meet specific requirements. In the market, composite flooring often refers to engineered wood flooring and solid wood composite flooring.

[0003] The flooring material in the relevant technology is made of eucalyptus wood substrate, melamine-formaldehyde resin, and ordinary impregnated decorative paper impregnated with melamine-formaldehyde resin by hot pressing.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: the flame retardant and other properties of the flooring materials in the aforementioned technologies are generally poor. Utility Model Content

[0005] To improve the flame retardant properties of composite flooring, this application provides a high-performance flame-retardant solid wood composite floor with HPL finish.

[0006] This application provides a high-performance flame-retardant solid wood composite floor with HPL finish, employing the following technical solution: A high-performance flame-retardant solid wood composite floor with HPL finish includes a substrate, a flame-retardant layer, and a finish layer. The flame-retardant layer includes a kraft paper layer and a phenolic resin layer. The kraft paper layer is connected to the phenolic resin layer. The flame-retardant layer is located between the substrate and the finish layer. The flame-retardant layer is connected to the substrate and the finish layer.

[0007] By employing the above technical solution, through the kraft paper layer and the phenolic resin layer, the phenolic resin layer will rapidly carbonize in the event of a fire, forming an effective flame-retardant barrier to protect the underlying wood substrate. Simultaneously, the kraft paper itself is a cellulose material, which further enhances its flame-retardant properties.

[0008] Preferably, the phenolic resin layer encapsulates at least a portion of the kraft paper layer, the phenolic resin layer is connected to the substrate, and the phenolic resin layer is connected to the finishing layer.

[0009] By wrapping a phenolic resin layer around a kraft paper layer, the flame retardant properties are further enhanced, as kraft paper itself is a cellulose material.

[0010] Preferably, the finishing layer includes decorative paper and a melamine-formaldehyde resin layer, wherein the melamine-formaldehyde resin layer covers at least a portion of the decorative paper, and the melamine-formaldehyde resin layer is connected to the flame-retardant layer.

[0011] The surface formed by curing melamine-formaldehyde resin is extremely hard, dense, smooth, and chemically inert, which improves the wear resistance, scratch resistance, and stain resistance of HPL-finished high-performance flame-retardant solid wood composite flooring.

[0012] Preferably, the substrate is a birch substrate.

[0013] By using birch wood as the base material, compared to eucalyptus wood in related technologies, birch wood has a higher density and more uniform structure, providing better basic strength and stability, and improving impact resistance and load-bearing performance.

[0014] Preferably, the substrate has a first end and a second end, which are located on opposite sides of the substrate. The first end has a protruding end, and the second end has a groove. The protruding end is used to pass through the groove of another HPL-finished high-performance flame-retardant solid wood composite floor.

[0015] The two composite floorboards are connected by inserting the protruding end of one composite floorboard into the groove of another composite floorboard, resulting in a simple structure.

[0016] Preferably, the HPL-finished high-performance flame-retardant solid wood composite flooring includes a rubber pad located within the groove. The substrate has a first wall and a second wall, which are distributed along the thickness direction of the substrate. The groove is located between the first wall and the second wall, and the rubber pad is connected to either the first wall or the second wall.

[0017] By using a rubber pad, when connecting two composite floorboards, the protruding end of one composite floorboard is inserted into the groove of the other composite floorboard. The protruding end of one composite floorboard contacts the rubber pad, causing the rubber pad to deform. This makes it easier to insert the protruding end of one composite floorboard into the groove of the other composite floorboard. It also reduces the possibility of errors in processing the protruding end and the groove causing the gap between the protruding end of one composite floorboard and the groove of the other composite floorboard to be too large, resulting in a gap between the two and causing cavities inside the composite floorboards after assembly.

[0018] Preferably, along the thickness direction of the substrate, the first wall is closer to the finishing layer than the second wall, and the rubber pad is connected to the second wall.

[0019] By installing rubber pads on the second wall, it is easier to install the two composite floorboards by having the protruding end of one floorboard abut against the rubber pad in the groove of the other floorboard from top to bottom.

[0020] Preferably, the HPL-finished high-performance flame-retardant solid wood composite flooring further includes a support layer, which is located between the flame-retardant layer and the finish layer. The direction perpendicular to the thickness direction of the substrate is defined as the transverse direction. The substrate has a first end and a second end. Along the transverse direction, the first end and the second end are respectively located on both sides of the substrate. Along the transverse direction, the support layer is at least partially located on the side of the first end away from the second end. Along the transverse direction, the support layer is located on the side of the second end facing the first end.

[0021] By placing at least part of the support layer on the side opposite to the second end at the first end, the support layer and the flame retardant layer form a labyrinth seal, reducing the amount of liquid entering the substrate through the support layer and the flame retardant layer, thus preventing corrosion and decay of the substrate. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the HPL-finished high-performance flame-retardant solid wood composite flooring of this application.

[0023] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle circle.

[0024] Figure 3 This is a structural diagram of a single HPL-finished high-performance flame-retardant engineered wood floor.

[0025] Reference numerals: 1. Substrate; 11. First end; 111. Protruding end; 12. Second end; 121. Groove; 122. Rubber pad; 123. First wall; 124. Second wall; 2. Flame retardant layer; 21. Kraft paper layer; 22. Phenolic resin layer; 3. Finishing layer; 31. Decorative paper; 32. Melamine-formaldehyde resin layer; 4. Support layer; 5. Sealing groove; Z. Thickness direction; X. Transverse direction. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0027] This application discloses an HPL-finish high-performance flame-retardant solid wood composite flooring. (Refer to...) Figure 1 , Figure 2 as well as Figure 3 HPL high-performance flame-retardant solid wood composite flooring includes a substrate 1, a flame-retardant layer 2, and a surface layer 3. Along the thickness direction Z of the substrate 1, the flame-retardant layer 2 is located between the surface layer 3 and the substrate 1. The flame-retardant layer 2 is bonded to the surface layer 3, and the substrate 1 is bonded to the flame-retardant layer 2.

[0028] In some implementations, refer to Figure 1 , Figure 2 as well as Figure 3The substrate 1 is a birch substrate 1. The direction perpendicular to the thickness direction Z of the substrate 1 is defined as the transverse direction X. The substrate 1 has a first end 11 and a second end 12. Along the transverse direction X, the first end 11 and the second end 12 are located on both sides of the substrate 1.

[0029] Specifically, refer to Figure 1 , Figure 2 as well as Figure 3 The first end 11 has a protruding end 111 that protrudes from the surface of the first end 11 in the transverse direction X. The second end 12 has a groove 121 that is recessed from the surface of the second end 12 into the interior of the substrate 1. The protruding end 111 of one composite flooring is used to insert into the recess of another composite flooring to achieve installation.

[0030] In some implementations, refer to Figure 1 as well as Figure 3 The HPL-finished high-performance flame-retardant engineered wood flooring includes a rubber pad 122 located within a groove 121, which is used to contact the protruding end 111 of another engineered wood flooring.

[0031] Specifically, refer to Figure 1 as well as Figure 3 The substrate 1 has a first wall 123 and a second wall 124. The first wall 123 and the second wall 124 are distributed along the thickness direction Z of the substrate 1. The groove 121 is located between the first wall 123 and the second wall 124. Along the thickness direction Z of the substrate 1, the first wall 123 is closer to the finishing layer 3 than the second wall 124. The rubber layer is connected to the second wall 124. Specifically, the rubber layer is bonded to the second wall 124.

[0032] In some implementations, refer to Figure 1 , Figure 2 as well as Figure 3 HPL-finished high-performance flame-retardant engineered wood flooring also includes a support layer 4, which can be made of birch board, steel plate, stainless steel plate, etc. Specifically, the support layer 4 is made of stainless steel plate.

[0033] Specifically, refer to Figure 1 , Figure 2 as well as Figure 3Along the thickness direction Z of the substrate 1, the support layer 4 is located between the finishing layer 3 and the flame retardant layer 2. Along the transverse direction X, part of the support layer 4 is located on the side of the first end 11 away from the second end 12. In other words, a sealing groove 5 is formed between the support layer 4 and the protruding end 111. When the second end 12 of another composite floor and part of the flame retardant layer 2 are inserted into the sealing groove 5 of the composite floor, a labyrinth seal can be achieved, reducing the amount of liquid entering the substrate 1 through the gap between the two composite floors, which would cause the substrate 1 to rot. This improves the waterproofness of the composite floors when they are combined to a certain extent and reduces the damage of liquid to the substrate 1.

[0034] In some embodiments, the flame retardant layer 2 includes a kraft paper layer 21 and a phenolic resin layer 22. The phenolic resin layer 22 covers at least a portion of the kraft paper layer 21. Specifically, the kraft paper can be immersed in phenolic resin to form a flame retardant layer 2 that covers the kraft paper layer 21 with the phenolic resin layer 22. The flame retardant layer 2 is bonded to the substrate 1 with phenolic resin. The flame retardant layer 2 that covers the kraft paper layer 21 with the phenolic resin layer 22 is bonded to the finishing layer 3.

[0035] In some embodiments, the finishing layer 3 includes decorative paper 31 and a melamine-formaldehyde resin layer 32, the melamine-formaldehyde resin layer 32 covering at least a portion of the decorative paper 31, and the melamine-formaldehyde resin layer 32 being connected to the flame-retardant layer 2. Specifically, the melamine-formaldehyde resin layer 32 is bonded to the phenolic resin layer 22.

[0036] In some embodiments, the phenolic resin layer 22 wraps the flame-retardant layer 2 of the kraft paper layer 21 and is bonded to the support layer 4, and the melamine-formaldehyde resin layer 32 wraps the decorative layer 3 of the decorative paper 31 and is bonded to the support layer 4.

[0037] The implementation principle of the HPL-finished high-performance flame-retardant solid wood composite flooring in this application embodiment is as follows: During installation, the protruding end 111 of one composite flooring is installed with the groove 121 of another composite flooring. The protruding end 111 of one composite flooring is brought into contact with the rubber pad 122 in the groove 121 of another composite flooring from top to bottom, so as to facilitate better installation. At the same time, the second end 12 of the other composite flooring and part of the flame-retardant layer 2 are inserted into the sealing groove 5 of the composite flooring, thereby realizing the installation of the two composite floorings.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A HPL-finished high-performance fire-retardant parquet, characterized in that: It includes a substrate (1), a flame retardant layer (2) and a finishing layer (3). The flame retardant layer (2) includes a kraft paper layer (21) and a phenolic resin layer (22). The kraft paper layer (21) is connected to the phenolic resin layer (22). The flame retardant layer (2) is located between the substrate (1) and the finishing layer (3). The flame retardant layer (2) is connected to the substrate (1) and the finishing layer (3).

2. The HPL-finished high-performance fire-retardant parquet according to claim 1, characterized in that: The phenolic resin layer (22) wraps at least part of the kraft paper layer (21), the phenolic resin layer (22) is connected to the substrate (1), and the phenolic resin layer (22) is connected to the finishing layer (3).

3. The HPL-finished high-performance fire-retardant parquet according to claim 1, characterized in that: The finishing layer (3) includes decorative paper (31) and a melamine-formaldehyde resin layer (32), the melamine-formaldehyde resin layer wrapping at least part of the decorative paper (31), and the melamine-formaldehyde resin layer (32) being connected to the flame retardant layer (2).

4. The HPL-finished high-performance fire-retardant parquet according to claim 1, characterized in that: The substrate (1) is a birch wood substrate (1).

5. The HPL-finished high-performance fire-retardant parquet according to claim 1, characterized in that: The substrate (1) has a first end (11) and a second end (12), the first end (11) and the second end (12) are respectively located on both sides of the substrate (1), the first end (11) is provided with a protruding end (111), and the second end (12) is provided with a groove (121). The protruding end (111) is used to pass through the groove (121) of another HPL-finished high-performance flame-retardant solid wood composite floor.

6. The HPL-finished high-performance fire-retardant parquet according to claim 5, characterized in that: The HPL-finished high-performance flame-retardant solid wood composite flooring includes a rubber pad (122) located in the groove (121). The substrate (1) has a first wall (123) and a second wall (124). The first wall (123) and the second wall (124) are distributed along the thickness direction (Z) of the substrate (1). The groove (121) is located between the first wall (123) and the second wall (124). The rubber pad (122) is connected to the first wall (123) or the second wall (124).

7. The HPL-finished high-performance fire-retardant parquet according to claim 6, characterized in that: Along the thickness direction (Z) of the substrate (1), the first wall (123) is closer to the finishing layer (3) than the second wall (124), and the rubber pad (122) is connected to the second wall (124).

8. The HPL-finished high-performance fire-retardant parquet according to claim 1, characterized in that: The HPL-finished high-performance flame-retardant solid wood composite flooring also includes a support layer (4), which is located between the flame-retardant layer (2) and the finish layer (3). The direction perpendicular to the thickness direction (Z) of the substrate (1) is defined as the transverse direction (X). The substrate (1) has a first end (11) and a second end (12). Along the transverse direction (X), the first end (11) and the second end (12) are located on both sides of the substrate (1). Along the transverse direction (X), the support layer (4) is at least partially located on the side of the first end (11) away from the second end (12). Along the transverse direction (X), the support layer (4) is located on the side of the second end (12) facing the first end (11).

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