Manufacturing method for low-adhesive-consumption environment-friendly multi-layer solid wood composite floor

A technology of solid wood composite flooring and manufacturing methods, which is applied to the jointing of wooden veneers, other plywood/plywood appliances, manufacturing tools, etc. It can solve the problems of high price, affecting the dimensional stability of the floor, and unsatisfactory gluing performance, etc., to achieve Low production cost, easy operation of production equipment, and short processing time

Active Publication Date: 2016-08-17
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bonding performance of this adhesive is not ideal, it will affect the dimensional stability of the floor, and the price is higher

Method used

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  • Manufacturing method for low-adhesive-consumption environment-friendly multi-layer solid wood composite floor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The small-diameter fast-growing poplar is cut into a certain length of wood with a circular saw. The length of the wood is determined according to the format requirements of the multi-layer solid wood composite flooring product, usually the length of the multi-layer solid wood composite flooring product + 100 ~ 150mm. Put the wood section in the cooking tank for softening treatment to increase the plasticity of the wood to improve the quality of the rotary cut veneer. In order to ensure the quality of multi-layer solid wood composite flooring, it is necessary to use a special stripping machine to remove the bark of the wood section. Then, use a mechanical centering machine to determine the center of rotation of the wood section, and then use a wooden machine to place the wood section on a rotary cutting machine, and then rotary cut it into a veneer with a thickness of 1mm.

[0035] Put the poplar veneer in a hot plate dryer to dry under a certain pressure (less than 0.1...

Embodiment 2

[0040] The small-diameter fast-growing poplar is made into a veneer with a thickness of 1mm and a moisture content of 8% by the same steps as in Example 1.

[0041] Put the dried veneer on the feeding conveyor belt of the integrated device of low-temperature plasma modification and micro-sizing of wood veneer, enter the low-temperature plasma treatment area driven by the feeding roller, and adjust the upper and lower four pairs of discharge The distance between the electrodes was 5mm. Turn on the low-temperature plasma power supply and adjust the processing power to 4.5KW. When the voltage between the electrodes reaches the air discharge voltage, a dielectric barrier discharge is formed between the electrodes to generate low-temperature plasma. Poplar veneers are suspended in the air at a speed of 10m / min. The four pairs of electrodes pass continuously through the gap, and the low-temperature plasma modification treatment is performed on the upper and lower surfaces of the ven...

Embodiment 3

[0049] Masson pine logs were made into veneers with a thickness of 2mm and a moisture content of 8% by the same steps as in Example 1.

[0050] Put the dried veneer on the feeding conveyor belt of the integrated device of low-temperature plasma modification and micro-sizing of wood veneer, enter the low-temperature plasma treatment area driven by the feeding roller, and adjust the upper and lower four pairs of discharge The distance between the electrodes was 10 mm. Turn on the low-temperature plasma power supply and adjust the processing power to 4.5KW. When the voltage between the electrodes reaches the air discharge voltage, a dielectric barrier discharge is formed between the electrodes to generate low-temperature plasma. Masson pine veneers are suspended in the air at a speed of 10m / min. The four pairs of electrodes pass continuously through the gap, and the low-temperature plasma modification treatment is performed on the upper and lower surfaces of the veneer at the sam...

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Abstract

The invention relates to a manufacturing method for a low-adhesive-consumption environment-friendly multi-layer solid wood composite floor and belongs to the technical field of artificial board manufacturing. The method includes the steps that short-cut wood is subjected to rotary-cutting into 1-3 mm wooden veneers, and the veneers are dried, so that the moisture content is adjusted to be 8%-12%; the double sides of the veneers are subjected to normal-pressure low-temperature plasma modification treatment; through ultrasound and cyclone synergistic effect, an adhesive is atomized into particles with the diameter being smaller than 40 [mu]m, then the particles are sprayed onto the tight sides of the veneers, and the adhesive consumption of a single side is controlled to be 10-80 g/m<2>; mutually vertical assembly is performed according to fiber texture directions of the adjacent-layer veneers; and hot-pressing and sliced wood veneer lamination are conducted, and then the low-adhesive-consumption environment-friendly multi-layer solid wood composite floor is obtained. The properties of the low-adhesive-consumption environment-friendly multi-layer solid wood composite floor meet the requirement of national standards; the formaldehyde emission reaches E0 grade; the adhesive consumption is decreased by 30%-70% compared with that of a traditional adhesive coating mode; the product quality is remarkably improved; and the production cost is dramatically reduced. Besides, the production process of the method achieves energy saving and environment protection, production equipment is easy and convenient to operate, high in efficiency and good in controllability, and continuous automatic operation can be achieved.

Description

technical field [0001] The invention relates to a method for manufacturing an environment-friendly multi-layer solid wood composite floor with a low amount of glue. It belongs to the technical field of wood-based panel manufacturing. Background technique [0002] Solid wood composite flooring is a type of wood flooring derived from the solid wood flooring family, which is divided into multi-layer solid wood flooring and three-layer solid wood flooring. The three-layer solid wood composite floor is made of three-layer solid wood structure cross-laminated. The multi-layer solid wood composite floor is based on multi-layer plywood, and the surface is covered with sawn or sliced ​​decorative veneer, which is cut and formed, and the surface is painted. . [0003] Due to the staggered laminated structure, the solid wood composite floor overcomes to a certain extent the defect that the solid wood floor is easily deformed due to wet expansion and shrinkage, and has good dimensiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B27D5/00B27G11/00B27K5/06B27L1/00B27M3/04
CPCB27D1/04B27D5/00B27G11/005B27K5/06B27L1/00B27M3/04
Inventor 周晓燕曹倚中陈敏智陈卫民王翔潘明珠史书凯蒋帅南万京林卞杰
Owner NANJING FORESTRY UNIV
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