Light-Projection Structuring for Coated Panel Motif Protection
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Solution Overview
Problem
Existing methods for manufacturing coated panels with motifs are inflexible and often leave the motif partially unprotected against wear or moisture, and struggle to achieve smooth, desired structures.
Innovation Solution
A method involving a light-projection technique to create a relief pattern on a synthetic material layer, which can harden selectively and form recesses or protrusions, allowing for a smooth and contact-free application of structures corresponding to the motif, using UV-hardening materials and digital light projection with high resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional structuring methods (recesses in substrate, die impressions, selective lacquer) are used, then a structure can be formed on the panel, but the motif remains partially unprotected against wear or moisture penetration
Solution Approach 1:
The top layer is segmented into structured regions (recesses and protrusions) and unstructured regions, allowing different portions to serve different functions. The structured portions provide wear and moisture protection while the unstructured portions maintain the motif's aesthetic appearance, resolving the contradiction between protection and design flexibility.
Solution Approach 2:
The synthetic material layer is applied with locally varying properties: structured regions with recesses and protrusions for protection, and unstructured regions for motif preservation. This local differentiation allows simultaneous achievement of protection and aesthetic fidelity without compromising either aspect.
2Ease of manufacture
If mechanical structuring methods (die impressions, pressing cylinders) are used, then a structure can be realized on the panel, but the process becomes complex and less smooth
Solution Approach 1:
The patent replaces complex mechanical structuring systems (dies, pressing cylinders) with a light-projection technique that uses optical patterns to define structured regions. This substitution simplifies the manufacturing process while maintaining the ability to create precise structures, directly addressing the contradiction between ease of manufacture and device complexity.
Solution Approach 2:
A light-projection system serves as an intermediary between the design pattern and the synthetic material layer, eliminating the need for direct mechanical contact. The projected light pattern acts as a mediator that defines structured regions without requiring complex physical tooling, thereby simplifying the manufacturing process.
3Manufacturing precision
If contact-based structuring methods are used, then a structure can be formed on the synthetic material layer, but inclusions may be introduced and surface quality compromised
Solution Approach 1:
The patent replaces contact-based mechanical structuring with a non-contact light-projection technique. This eliminates the risk of introducing inclusions through physical contact while maintaining high manufacturing precision. The optical method preserves surface quality without compromising productivity, as the light projection can be performed rapidly and uniformly across the entire panel surface.
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 smooth, flexible, and protective structures on coated panels, ensuring the motif is well-protected and maintaining a high level of surface quality, with the ability to replicate intricate designs like wood pores, while reducing the risk of inclusions and improving manufacturing efficiency.
Implementation Method 1
the projected light has the aim of hardening portions of the aforementioned synthetic material layer, wherein unexposed portions of this synthetic material layer can be removed and thus form recesses between the hardened portions
Data Source
AI summary
Method for manufacturing coated panels of the type which comprises at least a substrate and a top layer, provided on this substrate, with a motif, wherein the method for realizing the top layer comprises at least two steps, namely, a first step in which a synthetic material layer is provided on the substrate, and a second step in which a relief is provided on the surface of said synthetic material layer, wherein said relief shows a pattern of recesses and/or protrusions, wherein said pattern is at least partially determined by means of a light-projection technique.