Antistatic Wood Panel Coating via Segmented Conductive Layers
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Solution Overview
Problem
Existing wood-based panel coatings that incorporate antistatic layers to prevent static electricity often disrupt the normal structure of the surface coating, leading to increased production costs and delamination issues due to differences in adhesiveness and properties between the conductive layers and other coating layers.
Innovation Solution
An antistatic layer is applied in sections to the wood-based panel, allowing for direct connection between other surface layers and reducing the overall amount of antistatic material needed, which is integrated into a multi-layer coating system and can be applied in various geometric patterns, ensuring strong bonding and minimal disruption to the coating process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conductive layer is integrated into the surface coating to prevent static charge, then antistatic properties are improved, but the coating structure is disrupted and delamination occurs due to differences in adhesiveness
Solution Approach 1:
The conductive layer is applied in sections rather than as a continuous layer. The sections are arranged in a pattern where they do not cover the entire surface, allowing other coating layers to bond directly to the substrate in the uncovered areas. This segmented approach maintains antistatic properties while preserving the overall coating structure integrity and preventing delamination.
2Reliability
If a conductive layer is applied to the surface coating, then static charge is prevented, but production costs increase due to additional materials and process complexity
Solution Approach 1:
Instead of applying a conductive layer across the entire surface, the invention applies the conductive material only in sections covering a portion of the surface. This partial action approach reduces the amount of conductive material required and simplifies the manufacturing process, thereby reducing production costs while still achieving the necessary antistatic effect.
3Reliability
If a conductive layer is integrated into the coating system, then static charge is prevented, but the process parameters must be significantly adapted
Solution Approach 1:
The segmented application of the conductive layer allows the coating process to proceed with minimal adaptation of process parameters. By applying the conductive material only in sections rather than as a continuous layer, the existing coating equipment and process parameters can be used with minimal modification, reducing device complexity and process adaptation requirements.
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 approach effectively prevents static charge buildup while maintaining the integrity of the coating system, reducing delamination risks and production costs, and achieving conductivity levels below 2000V as per DIN 1815 standards, thus qualifying as an antistatic floor covering according to EN 14041.
Implementation Method 1
contains electrically conductive particles
Data Source
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AI summary
The invention relates to a wood-based panel 1 for wall, floor, or ceiling elements with at least one multi-layered surface coating. To reliably prevent static charging of a person touching the surface coating of the wood-based panel 1 and to provide a particularly cost-effective wood-based panel 1 with a surface coating in which delamination of the surface coating is prevented, it is provided that one layer (2, 11, 17, 26, 32, 37, 40) of the surface coating is applied as a liquid, is applied section by section, and contains electrically conductive particles.