Anti-cracking floor heating solid wood composite floor and production method thereof

Abstract

The invention discloses an anti-cracking floor heating solid wood composite floor, and belongs to the technical field of wood floor production. The anti-cracking floor heating solid wood composite floor is formed by gluing a composite surface board, non-woven cloth, a core board, non-woven cloth and a bottom board in sequence. The composite surface board, the core board and the bottom board are arranged in a staggered mode in the longitudinal direction, the transverse direction and the longitudinal direction according to wood textures. The composite surface board is formed by assembling rotary-cut hardwood and softwood in a staggered mode in the longitudinal direction, the transverse direction and the longitudinal direction according to wood textures; longitudinal grooves are formed in the back surface of the hardwood surface board of the composite surface board, the depth of the longitudinal grooves ranges from 0.2 mm to 0.5 mm, the width of the longitudinal grooves ranges from 1 mm to 5 mm, and the length of the longitudinal grooves is equal to the length of the board; the surface is immersed with an epoxy resin layer. The anti-cracking floor heating solid wood composite floor has the advantages that the utilization rate of wood resources is increased, the cracking rate of the composite surface board is decreased, the loss of floor heating heat is reduced, and raised grain of the core board is avoided due to the composite surface board structure. The invention further discloses a production method of the anti-cracking floor heating solid wood composite floor.

Description

technical field [0001] The invention relates to a composite floor and a production method thereof, in particular to an anti-crack floor heating solid wood composite floor and a production method thereof, belonging to the technical field of wooden floor production. Background technique [0002] With the increasing saturation of the laminate flooring market, the market share of solid wood flooring in the entire flooring industry is getting higher and higher. Among them, the solid wood composite floor with three-layer structure is more and more popular in the market because of its environmental protection, not easy to deform, wide application area and good appearance effect as geothermal floor. [0003] The surface of solid wood composite flooring generally uses 3~4mm hard sawn wood species of precious trees as the surface board, and the cork veneer used for the core board and bottom board is mostly fast-growing wood such as spruce, sylvestris pine, poplar, and eucalyptus. As ...

AI Technical Summary

Problems solved by technology

It is precisely because of this characteristic of wood that warping and deformation of solid wood composite flooring will occur during production and use, especially when the floor is paved in an underfloor heating environment, internal stress will cause cracks on the surface of the floor Hardwood resources are becoming more and more scarce, and the price of hardwood suitable for use as the surface layer is rising, which greatly increases the cost of raw materials; rotary-cut veneer can greatly improve the utilization rate of wood, but due to the cracks on the back of the rotary-cut wood processing, resulting in the processing of rotary-cut veneer When the finished floor is used for geothermal heating, the surface layer is prone to cracking

[0004] At present, the solution to such problems in the industry is mainly to carbonize the surface material or base material of the floor. The so-called "carbonization" is the high-temperature heat treatment of wood. etc.) to heat-treat the wood under the specific conditions of protection, so that the hemicellulose components inside the wood are partially decomposed, nutrients such as starch and sugar react and volatilize, and new chemical bonds are formed inside the wood. This method can improve the quality of the wood. Dimensional stability, weather resistance and durability purposes; but in the process of modification, a large amount of hydrothermal energy will be consumed, resulting in waste of energy and resources

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