Spatially Resolved Textured Coating via Segmented Nozzle Arrays
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Solution Overview
Problem
Existing methods face difficulties in generating textured coatings with spatially resolved, laterally dependent textures, particularly for complex two-dimensional visual applications with numerous fine structures, such as photographic images, where precise location-dependent texture production is challenging.
Innovation Solution
A method involving scanning a two-dimensional representation to digitize color and texture information, applying fluid coating material based on this data, and curing it in a location-dependent manner using UV radiation to create varying textures and surface reliefs, allowing for the generation of different haptic and visual effects across a surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional coating methods are used to create textured surfaces, then uniform coating application is achieved, but spatially resolved, location-dependent textures cannot be generated
Solution Approach 1:
The coating system is segmented into multiple independently controllable nozzle groups, each capable of applying coating material with different properties to different spatial zones. This allows simultaneous creation of multiple textures across the substrate surface, resolving the contradiction between uniform application and location-dependent variation.
Solution Approach 2:
The invention implements local quality by enabling each nozzle or nozzle group to apply coating material with specifically tailored properties (viscosity, composition, application parameters) suited to the desired texture in that particular location. This allows precise control over texture characteristics at each spatial position while maintaining overall system coordination.
2Measurement precision
If complex two-dimensional visual applications with numerous fine structures are produced, then visual fidelity is improved, but determining areas for specific effects and generating corresponding textures becomes increasingly difficult
Solution Approach 1:
The system incorporates feedback mechanisms where the desired visual appearance and texture requirements are analyzed, and this information feeds back to control the coating application parameters for each zone. This closed-loop approach simplifies the generation of complex textures by automatically determining appropriate settings based on the visual requirements.
Solution Approach 2:
The coating system is designed with multi-functionality, where a single coating head assembly can perform multiple functions: applying different coating materials, varying application parameters, and creating different textures all through unified control. This reduces overall device complexity compared to having separate specialized systems for each function.
3Adaptability or versatility
If different haptic and visual properties are created in different areas of a coated surface, then design flexibility is improved, but process complexity increases
Solution Approach 1:
The invention merges multiple coating functions into a single integrated system. Different coating materials, application parameters, and texture creation capabilities are combined in one coating head assembly that can be controlled to produce various effects in different areas, reducing the need for multiple separate coating systems.
Solution Approach 2:
The coating system employs dynamic control where application parameters such as nozzle activation, coating material flow rate, and head movement speed can be dynamically adjusted during the coating process based on the desired texture and visual properties for each location, enabling design flexibility without requiring complex static system configurations.
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
Enables the creation of textured coatings with precise, location-dependent textures and surface reliefs that accurately replicate the visual and haptic impressions of the original representation, enhancing the visual and tactile experience.
Implementation Method 1
applying a fluid coating material, in particular a UV-curable varnish, which is location-dependent and laterally spatially dependent, to at least one area of the two-dimensional representation
Implementation Method 2
short-wave monochromatic UV radiation is first applied to a coating, causing polymerization and cross-linking only in its surface layer
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates in general to a method and a device for producing a textured coating. The invention particularly relates to a method and a device for the spatially resolved production of a textured coating, preferably for the spatially resolved production of a location-dependent textured coating. The method comprises the steps: - providing a flat representation, - evaluating a data set of the flat representation, - determining local structures of the flat representation, - determining the type and location of at least one texture to be produced on at least one region of the flat representation, - providing a fluid coating material - applying the fluid coating material to at least one region of the flat representation.