Multi-Layer Veneered Wooden Boards with Excess-Resin Pressing
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Solution Overview
Problem
Existing methods for producing veneered wooden materials are costly due to the high expense of thick, high-quality veneers, and there is a need for a cost-effective method to achieve high-quality veneer surfaces while maintaining aesthetic appeal.
Innovation Solution
A method involving a supporting plate and a first veneer connected by synthetic resin, with a second veneer applied on top, using excess synthetic resin to penetrate and compress the veneers in a high-pressure press, allowing for a combination of cost-effective and high-quality veneers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a thick, high-quality veneer is used to create a veneered surface, then the aesthetic appeal and surface quality are improved, but the production cost increases significantly
Solution Approach 1:
The patent divides the veneer structure into multiple layers: a first veneer layer (0.8-2.5 mm thick) that provides structural foundation and cost-effectiveness, and a second veneer layer (0.15-0.3 times the thickness of the first veneer) that provides aesthetic quality. This segmentation allows each layer to serve different functions, reducing the need for a single thick expensive veneer while maintaining overall surface quality.
Solution Approach 2:
The patent applies different quality levels to different parts of the veneer structure. The first veneer layer uses cost-effective materials with sufficient thickness for structural purposes, while the second veneer layer uses higher-quality materials but with reduced thickness since it only needs to provide surface aesthetics. This local differentiation optimizes the balance between cost and quality.
2Strength
If excess synthetic resin is applied and then dried without curing, then the penetration and compression of veneers is improved, but the process complexity increases
Solution Approach 1:
The patent applies excess synthetic resin to the veneer surfaces before assembly and allows it to dry without curing initially. This preliminary action prepares the resin for subsequent penetration and compression during pressing, creating optimal bonding conditions. The resin remains uncured during assembly, then penetrates and compresses the veneers under pressure, finally curing to provide strong bonds. This staged approach simplifies the overall process while achieving superior compressive strength.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enables the creation of thick veneer surfaces at lower costs by using thinner, cheaper veneers, enhances compressive strength, and maintains aesthetic appeal with varied color and texture effects, suitable for flooring and furniture applications.
Implementation Method 1
the synthetic resin penetrates the veneer
Implementation Method 2
a synthetic resin layer is applied, which affixes a veneer by the synthetic resin penetrating the veneer
Implementation Method 3
the stack of material to be pressed is compressed in a high-pressure press to form a wooden material
Data Source
AI summary
The invention relates to a method for producing a wooden material having a supporting plate and at least one first, non-external veneer and a second veneer on a first surface of the supporting plate, wherein the supporting plate, the first and the at least second veneer are connected to one another by synthetic resin. In order to create a cost-effective wooden material board with a veneered surface,a liquid synthetic resin is applied, in excess, in relation to the quantity required for gluing purposes, to the supporting plate and/or to the first veneer and/or the at least second veneer,the synthetic resin applied in excess is dried but not cured,a stack of material to be pressed comprising the supporting plate, the first, non-external veneer and the at least second veneer is assembled, andthe stack of material to be pressed is compressed in a high-pressure press to form a wooden material.