Decorative Panel Coating Relief for Natural Look and Feel
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Solution Overview
Problem
Existing decorative panels, particularly those based on synthetic materials, often have a synthetic look and feel, lacking a natural appearance and tactile quality.
Innovation Solution
Incorporating a randomized relief on the top coating, defined by a curing process, which comprises a plurality of peaks and valleys with specific dimensions, providing a less glossy and softer surface texture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a smooth top coating surface is used, then the panel has a glossy appearance and easier manufacturing, but the panel has a synthetic look and feel lacking natural appearance
Solution Approach 1:
The patent applies parameter changes by modifying the surface topology of the top coating through UV curing processes that create randomized relief patterns. The surface is transformed from a smooth state to one with controlled peaks and valleys at specific dimensional ranges (1-25 μm peak-to-peak distance, 0.5-2.5 μm amplitude), changing the physical parameters to achieve a natural appearance while maintaining manufacturing efficiency through automated curing processes.
2Illumination intensity
If matting agents are added to reduce gloss, then the panel has a less glossy appearance, but the panel composition becomes more complex and durability may be compromised
Solution Approach 1:
The patent replaces the chemical approach (adding matting agents) with a physical approach (creating surface relief through UV curing). Instead of modifying the coating composition with additives, the solution uses photopolymerization processes to create a three-dimensional randomized relief structure that naturally reduces gloss through light scattering, eliminating the need for matting agents and their associated complexity.
3Shape
If a randomized relief is created on the top coating, then the panel has a more natural look and feel, but the manufacturing process becomes more complex
Solution Approach 1:
The patent applies self-service by designing a UV curing process that automatically generates randomized relief patterns without requiring external intervention or complex control systems. The photopolymerization process inherently creates the desired surface topology through controlled curing conditions, allowing the system to self-organize into the target structure and eliminating the need for additional post-processing or complex manufacturing equipment.
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
The randomized relief enhances the panels' natural appearance and feel, offering a higher quality look and improved walking comfort without the need for matting agents, while maintaining durability and wear resistance.
Implementation Method 1
the relief may be completely defined by a curing process
Data Source
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AI summary
Decorative panel comprising a substrate (2), a top layer (3) and a top coating (4), wherein said top layer is located between said substrate and said top coating, and wherein the uppermost surface of said top coating comprises a randomized relief (5).