CN219138241U

CN219138241U - EB-cured polypropylene film facing multilayer composite floor with special structure

Info

Publication number: CN219138241U
Application number: CN202223244992.1U
Authority: CN
Inventors: 魏强; 陈向望; 郑敏; 李永红; 祝鹏深
Original assignee: Power Dekor Floor Jurong Co ltd
Current assignee: Power Dekor Floor Jurong Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-06
Anticipated expiration: 2032-12-05

Abstract

The utility model belongs to the technical field of floor paving materials, and relates to an EB (ethylene-propylene) cured polypropylene film veneer multilayer composite floor with a special structure, which comprises a substrate body and a surface layer attached to the substrate body, wherein the substrate body sequentially comprises a surface layer, a core layer and a substrate bottom layer, a eucalyptus layer and a eucalyptus layer are arranged between the core layer and the surface layer, the eucalyptus layer and the eucalyptus layer are arranged between the core layer and the bottom layer in a crisscross manner, textures are arranged between the layers, the surface layer is an EB cured polypropylene film, and the length direction of the surface layer is parallel to the wood texture of the surface layer. According to the utility model, the polypropylene film with wood texture, archaizing effect and paint treatment effect cured by the EB (Electron Beam) process is attached to the surface of the floor substrate with a special structure to prepare the EB-cured polypropylene film veneer lock catch multilayer composite floor with the special structure, the substrate structure is subjected to repeated strict design, the dimensional stability is better, and the floor heating condition detection shows that the floor heating lock catch multilayer composite floor can be safely used under the floor heating condition.

Description

EB-cured polypropylene film facing multilayer composite floor with special structure

Technical Field

The utility model belongs to the technical field of floor paving materials, relates to a solid wood composite floor, and particularly relates to an EB (electron beam) cured polypropylene film veneer multilayer composite floor with a special structure.

Background

The multi-layer solid wood composite floor is prepared by taking natural rare tree species veneers (veneers) with different thicknesses as surface layers, taking plywood made of solid wood veneers with criss-cross textures as a base material, and coating special paint for the ultraviolet light curing floor with high performance, high wear resistance and high environmental protection, and is widely applied to the household building material industry. However, with the shortage of forest resources, the limits of solid wood composite floors have increased, especially from hard hardwood species selected from decades and even hundreds of years, and available resources have decreased rapidly. Raw material prices are continuously increased, the yield is greatly reduced, and the requirements on more rare multilayer surface boards in the multilayer solid wood composite floor are also more and more strict.

Chinese patent CN207808670U discloses an electron beam curing film multilayer composite floor, including UV paint film, electron beam curing film and multilayer substrate layer from top to bottom in proper order, wherein, the multilayer substrate layer is the plywood that is pressed with fast-growing wood veneer vertically and horizontally staggered and pastes, and the upper surface of plywood is through polyvinyl alcohol adhesive bonding electron beam curing film. Chinese patent CN109537847a discloses an EB cured polypropylene film faced multilayer composite floor and a production process thereof, wherein an EB cured polypropylene film is pasted on a multilayer plywood substrate, and a tongue-and-groove is a flat buckle.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to disclose the EB cured polypropylene film veneer multilayer composite floor with a special structure, which has a stable structure, smooth and fine mortises after molding and meets the performance requirements in all aspects under the condition of floor heating.

The utility model provides a special structure's EB solidification polypropylene film veneer multilayer laminate flooring, contains substrate body and attaches the surface course on the body, wherein, the substrate body includes top layer, sandwich layer and substrate bottom layer in proper order, is equipped with eucalyptus layer 1 and eucalyptus layer 2 between sandwich layer and top layer, is equipped with eucalyptus layer 3 and eucalyptus layer 4 between sandwich layer and bottom, with the vertically and horizontally staggered arrangement of texture between each layer, the surface course is EB solidification polypropylene film, and its length direction is parallel with the wood grain on top layer.

In the preferred embodiment of the utility model, the thickness of the surface layer is 0.27 plus or minus 0.05mm.

In a preferred embodiment of the utility model, the EB cured polypropylene film is a film prepared from polypropylene serving as a raw material by an electron beam curing process, and the surface of the EB cured polypropylene film not only contains wood textures, but also paint, plane and archaizing effects, so that the EB cured polypropylene film is formed by compounding the wood textures and the paint effects, and has natural wood textures, archaizing effects and paint treatment effects.

In the preferred embodiment of the utility model, the polyurethane resin adhesive layer is arranged between the surface layer and the substrate body, the thickness of the polyurethane resin adhesive layer is 0.1-0.2 mm, the polyurethane resin adhesive layer is polyurethane resin hot melt adhesive, the problems that the film is easy to generate surface defects on the rough wood surface and the like are solved, and the lower coating quantity has better adhesive strength.

In the preferred embodiment of the utility model, the thickness of the core layer is 7+/-0.5 mm, and the water content is 6-8%; adopts wood with fine annual rings, flexible texture, straight texture, small drying deformation, moderate mechanical strength and good processability; further, the core layer is made of pine wood such as pinus sylvestris, pinus radiata, and the like.

In the preferred embodiment of the utility model, the thickness of each of the

eucalyptus layers

2, 3, 5 and 6 is 1.5+/-0.5 mm, the wood grain is compact, the density is high, and the eucalyptus layers are not easy to deform after being dried.

In the preferred embodiment of the utility model, the thicknesses of the surface layer (1) and the bottom layer (7) are 0.8+/-0.2 mm, the wood grain is thin and straight, the spots of the tissue structure are fewer, and the processing, coating and gluing properties are better; further, the bottom layer (7) is made of beech.

The EB cured polypropylene film veneer multilayer composite floor with the special structure disclosed by the utility model has the advantages that all layers of the substrate body are arranged in a crisscross manner, the surface textures are parallel to the bottom textures, the direction of the EB film is consistent with the surface wood texture direction of the substrate, the anisotropism of wood is overcome, the substrate is sanded along the textures, and the phenomena of poor board surface caused by burr sanding printing and wood burrs are reduced. The utility model does not use the plywood which is common in the industry, uses thicker solid wood criss-cross assembly, and the whole assembly is in the form of the plywood, but breaks through the original structural form, has good bonding strength between each other, stable dimensional performance and meets the requirement of locking pull force.

The utility model is characterized in that: (1) the EB polypropylene film surface has wood decorative textures, and is additionally provided with a paint effect, a special plane and an archaizing effect, so that the natural wood is simulated to the greatest extent, the shortage of forest resources is solved, and the natural resources are protected; (2) compared with the existing solid wood composite floor and the existing technology, the surface is free from paint, the EB film is free from dipping, the coating hardness is high, the bonding adhesiveness with the EB film is strong, the process is simple, the environment is protected, and the comprehensive cost is relatively low. Solves the technical problems of poor surface effect, poor surface and the like of the thin film facing multilayer composite floor; compared with the floor with the common structure, the EB cured polypropylene film facing with the special structure can effectively utilize needle She Songmu wood, eucalyptus fast-growing wood and the like, maximize and comprehensively utilize the wood, and reduce the cost; the loss of equipment can be effectively reduced, and all physical and mechanical properties of the produced floor can meet the requirements of industry standards.

Advantageous effects

The utility model discloses an EB (ethylene-propylene) cured polypropylene film veneer multilayer composite floor with a special structure, which is prepared by attaching a polypropylene film with wood texture, archaizing effect and paint treatment effect cured by a EB (Electron Beam) process to the surface of a floor substrate with the special structure. The substrate structure is subjected to repeated strict design, the dimensional stability is better, and the substrate structure can be safely used under the floor heating condition through floor heating condition detection.

Drawings

FIG. 1 is a schematic cross-sectional structure of an EB-cured polypropylene film faced multilayer composite floor of a special structure, wherein (1) a surface layer, (2) a eucalyptus layer 1, (3) a eucalyptus layer 2, (4) a core layer, (5) a eucalyptus layer 3, (6) a eucalyptus layer 4, (7) a bottom layer, and (8) a surface layer.

Description of the embodiments

The present utility model will be described in detail with reference to the following examples, so that those skilled in the art can better understand the present utility model, but the present utility model is not limited to the following examples.

Examples

The utility model provides a special structure's EB solidification polypropylene film veneer multilayer laminate flooring, contains floor substrate body and attaches the top layer on the body, wherein, substrate body 1 is the multilayer substrate, thickness 11 ~ 18mm, the top layer comprises the EB solidification polypropylene film of polyurethane resin glue film adhesion, and thickness is 0.27 soil 0.05mm, and further, the wood grain nature of substrate surface layer is parallel with the length direction of EB solidification polypropylene film.

Examples

The EB cured polypropylene film facing multilayer composite floor with the special structure comprises a floor substrate body and a surface layer attached to the substrate body, wherein the substrate body is a multilayer substrate with the special structure, the thickness is 11-18 mm, the substrate body is formed by combining a pine main body core layer, eucalyptus and beech, and further, the core layer is pine, the thickness is (7+/-0.5) mm, and the water content is (6-8)%. The surface layer is formed by adhering an EB cured polypropylene film to a polyurethane resin adhesive layer, the thickness of the surface layer is 0.27 mm and 0.05mm, and further, the wood grain of the surface layer of the substrate is parallel to the length direction of the EB cured polypropylene film.

Examples

The EB cured polypropylene film facing multilayer composite floor with the special structure comprises a floor substrate body and a surface layer attached to the substrate body, wherein the substrate body is a multilayer substrate with the special structure, the thickness is 11-18 mm, the substrate body is formed by combining a pine main body core layer, eucalyptus and beech, and further, the core layer is pine, the thickness is (7+/-0.5) mm, and the water content is (6-8)%. The surface layer is formed by adhering an EB cured polypropylene film to a polyurethane resin adhesive layer, and further, the wood grain of the surface layer of the base material is parallel to the length direction of the EB cured polypropylene film. The EB cured polypropylene film is a film prepared from polypropylene serving as a raw material by an electron beam curing process, has the thickness of about 0.27 soil of 0.05mm, contains wood textures, paint and special plane and archaizing effects on the surface, is formed by compounding the wood textures and the paint effects, has natural wood textures, archaizing effects and paint treatment effects, and is purchased from Japan.

Examples

The EB cured polypropylene film veneer multilayer composite floor with the special structure comprises a floor substrate body and a surface layer attached to the body, wherein the substrate body is a multilayer substrate with the special structure, the thickness is 11-18 mm, the substrate body is formed by assembling a pine main body core layer, eucalyptus and beech, and further, the core layer is pine, the thickness is (7+/-0.5) mm, and the water content is (6-8)%; the thickness of the eucalyptus layer (1.5+/-0.5) mm, the wood grain is compact, the density is high, and the eucalyptus layer is not easy to deform after being dried; the thickness of the surface layer and the bottom layer of the base material (0.8+/-0.2) mm, and further, the bottom layer is made of beech. The surface layer is formed by adhering an EB cured polypropylene film to a polyurethane resin adhesive layer, and further, the wood grain of the surface layer of the base material is parallel to the length direction of the EB cured polypropylene film. The EB cured polypropylene film is a film prepared from polypropylene serving as a raw material by an electron beam curing process, has the thickness of about 0.27 soil of 0.05mm, contains wood textures, paint and special plane and archaizing effects on the surface, is formed by compounding the wood textures and the paint effects, has natural wood textures, archaizing effects and paint treatment effects, and is purchased from Japan.

EB cured polypropylene film facing multilayer composite floor with special structure of this embodiment

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. An EB cured polypropylene film faced multilayer composite floor of special construction comprising a substrate body and a face layer (8) attached to the body, characterized in that: the base material body includes top layer (1), sandwich layer (4) and substrate bottom (7) in proper order, is equipped with eucalyptus layer 1 (2) and eucalyptus layer 2 (3) between sandwich layer (4) and top layer (1), is equipped with eucalyptus layer 3 (5) and eucalyptus layer 4 (6) between sandwich layer (4) and bottom (7), with texture vertically and horizontally staggered between each layer, surface layer (8) are EB solidified polypropylene film, and its length direction is parallel with the wood grain of top layer (1).

2. The special structured EB cured polypropylene film faced multilayer composite flooring of claim 1, wherein: the thickness of the surface layer (8) is 0.27 plus or minus 0.05mm.

3. The special structured EB cured polypropylene film faced multilayer composite flooring of claim 1, wherein: the surface layer (8) is a film prepared from polypropylene serving as a raw material by an electron beam curing process, and the surface of the film not only contains wood textures, but also has paint, plane and archaizing effects.

4. The special structured EB cured polypropylene film faced multilayer composite flooring of claim 1, wherein: a polyurethane resin adhesive layer with the thickness of 0.1-0.2 mm is arranged between the surface layer (8) and the substrate body, and is polyurethane resin hot melt adhesive.

5. The special structured EB cured polypropylene film faced multilayer composite flooring of claim 1, wherein: the thickness of the core layer (4) is 7+/-0.5 mm, and the water content is 6-8%.

6. The special structured EB cured polypropylene film faced multilayer composite flooring of claim 5, wherein: the core layer (4) is made of pine.

7. The special structured EB cured polypropylene film faced multilayer composite flooring of claim 1, wherein: the thickness of the eucalyptus layer 1 (2), the eucalyptus layer 2 (3), the eucalyptus layer 3 (5) and the eucalyptus layer 4 (6) is 1.5+/-0.5 mm.

8. The special structured EB cured polypropylene film faced multilayer composite flooring of claim 1, wherein: the surface layer (1) is made of solid wood with the thickness of 0.8+/-0.2 mm.

9. The special structured EB cured polypropylene film faced multilayer composite flooring of claim 1, wherein: the bottom layer (7) is beech with the thickness of 0.8+/-0.2 mm.