Heated Embossing Roller for Synchronized Wood Panel Decoration
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Solution Overview
Problem
Existing methods for embossing wood-based panels struggle to achieve precise synchronicity between color and structure decoration, often resulting in deviations and increased technical effort, with previous processes being inefficient or requiring additional steps for color and embossing.
Innovation Solution
A method using a heated decorative roller and counter-pressure roller, applying pressures of at least 10 bar up to 300 bar and temperatures above 200°C, to simultaneously emboss and discolor the panel, ensuring exact reproduction of wood-like decorations without additional coloring or resin layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a relief is first pressed into the surface and then decoration and seal are applied separately, then the structure and color can be created, but the synchronicity between color and structure decoration cannot be achieved with high precision
Solution Approach 1:
The patent combines the embossing roller and heating element into a single integrated unit. The embossing roller with its profiled surface simultaneously creates the structural relief and the heated surface creates the color decoration in one passing, eliminating the need for separate decoration and sealing steps while ensuring perfect synchronicity between color and structure.
Solution Approach 2:
The embossing roller serves multiple functions: it creates the structural relief pattern, it applies heat for color decoration, and it applies pressure to bond the decoration to the substrate. This multi-functional design eliminates the need for multiple separate devices and operations, achieving both structural and color decoration with perfect alignment in a single step.
2Manufacturing precision
If markings are applied to coordinate color and structure, then synchronicity can be improved, but the process becomes more complex and time-consuming
Solution Approach 1:
The patent merges the structure creation and color application into a single simultaneous operation using the heated embossing roller. Since both the relief pattern and color decoration are created in the same passing without intermediate steps, no time is lost to marking, coordination, or alignment adjustments.
Solution Approach 2:
The system is self-aligning by design - the heated embossing roller automatically ensures perfect alignment between structure and color because both are created by the same device in the same location at the same time. No external marking or coordination system is needed; the process self-regulates through the integrated design.
3Ease of manufacture
If separate steps are used for embossing and coloring, then each step can be optimized, but the overall process efficiency decreases
Solution Approach 1:
The patent combines embossing and coloring into a single integrated operation using the heated embossing roller. This eliminates the need for separate embossing and coloring steps, reducing the total number of operations while maintaining the ability to optimize both functions through the unified design of the roller and heating system.
Solution Approach 2:
The process achieves continuous production by eliminating intermediate steps between embossing and coloring. The substrate passes through the heated embossing roller once and receives both the structural relief and color decoration in a continuous flow, maximizing productivity without sacrificing the optimization of individual functions.
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 allows for the production of lifelike wood decorations with synchronized color and structure in a single operation, reducing time and costs while ensuring precise control over the decor, with the ability to produce a range of colors and embossing depths without additional color or resin layers.
Implementation Method 1
The decorative roller is heated to a temperature of more than 200°C, preferably up to 500°C
Implementation Method 2
a pressure of at least 10 bar up to a maximum of 300 bar is applied to the decorative roller
Implementation Method 3
The wood-based material discolours as a result of the high temperatures and the pressure acting on the surface of the panel
Data Source
Figure 1
Figure 2a~2b
AI summary
The method involves synchronizing a color and profile of metallic surface areas (8, 10) through which a wooden material plate i.e. high-density fiber board plate (12), is guided between a profiled decorative roller (4) and a backing roll (6). The roller is heated at a temperature of 200 degree Celsius, and pressure from 10 bar to 200 bar is executed at the roller. A gap is suspended between the decorative roller and the backing roll, where the gap is larger than thickness of the wooden material plate. The surface area of the wooden material plate is colored with pigments. An independent claim is also included for a device for manufacturing a wooden material plate, comprising a decorative roller.