Virtual Embossing via Flake Pigment Pattern in Coil Coating
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Solution Overview
Problem
Existing methods for creating embossed or three-dimensional patterns on surfaces are often costly and complex, involving substrate deformation which can compromise durability and mechanical properties, and may result in surfaces that are tactile and prone to environmental damage.
Innovation Solution
A coating process that applies a wet layer of a composition containing a curable resin and flake-form pigments onto a substrate, forms a pattern in the wet layer using a face-side rotating roller, and cures the layer to create a virtually embossed effect without deforming the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If traditional mechanical or thermomechanical embossing is used to generate a three-dimensional pattern, then the surface demonstrates a structural effect, but the equipment complexity increases and substrate mechanical properties are compromised
Solution Approach 1:
The patent replaces mechanical embossing systems with a coating-based solution. A coating composition containing flake-form pigments is applied to the substrate, and a pattern is formed within the wet coating layer. Upon curing, the pigment pattern creates a virtual three-dimensional effect without requiring mechanical embossing equipment or substrate deformation.
Solution Approach 2:
Instead of physically deforming the substrate to create three-dimensional patterns, the patent creates a visual copy or illusion of depth through strategically positioned flake-form pigments in the coating. The pigment pattern mimics the appearance of embossing while the actual substrate surface remains flat and undamaged.
2Shape
If traditional mechanical or thermomechanical embossing is used to generate a three-dimensional pattern, then the surface demonstrates a structural effect, but the manufacturing costs increase due to additional equipment and process steps
Solution Approach 1:
The patent eliminates the need for expensive embossing dies and mechanical structuring equipment by using a coating process. The three-dimensional effect is achieved through the optical properties of flake-form pigments arranged in a pattern within the coating layer, significantly reducing equipment investment and manufacturing complexity.
3Shape
If physically embossed surfaces are created with deep structures, then the embossed effect is striking and tactile, but the recesses are exposed to environmental influences causing quality degradation over time
Solution Approach 1:
The patent creates a virtual embossed effect through pigment arrangement rather than physical embossing. The flake-form pigments are suspended within the coating matrix, which protects them from environmental exposure. This eliminates the problem of recesses accumulating dirt and degrading, as the entire surface remains sealed and protected by the continuous coating layer.
Solution Approach 2:
The coating layer acts as a protective film that encapsulates the pigment pattern. This thin film structure preserves the visual three-dimensional effect while protecting the pigment arrangement from environmental damage, dust, and mechanical wear that would affect physically embossed surfaces.
4Shape
If physically embossed surfaces are created, then the surface demonstrates depth and structure, but the substrate undergoes permanent deformation affecting mechanical properties
Solution Approach 1:
The patent substitutes mechanical substrate deformation with a coating-based optical illusion. The substrate remains flat and undeformed, preserving its mechanical integrity, while the flake-form pigment arrangement in the coating creates the visual perception of surface structure and depth.
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 process achieves a consistent, high-quality, virtually embossed surface with strong mechanical durability and unique three-dimensional effects, while maintaining a substantially even surface finish and avoiding the drawbacks of traditional embossing methods.
Implementation Method 1
forming a pattern of the pigment in the wet layer by contacting the wet layer with at least one face-side rotating roller
Implementation Method 2
curing the wet layer thereby forming a cured layer, wherein the formed pattern of the pigment is capable of remaining substantially unchanged after curing
Data Source
AI summary
The present disclosure provides processes and systems for generating a coated article having a virtual embossing effect. A process comprises applying a wet layer of a coating composition on a substrate, the composition comprising a curable resin and a plurality of flake-form pigments; forming a pattern of the pigments in the wet layer; and curing the wet layer thereby forming a cured layer, wherein the formed pattern of the pigments is capable of remaining substantially unchanged after curing and results in a virtually embossed effect of the cured layer. A coating system comprises a substrate; a coating composition comprising a curable resin and a plurality of flake-forming pigments; means for applying a wet layer of the composition onto the substrate; means for forming a pattern of the pigments in the wet layer; and means for curing the wet layer to form a substantially cured layer. The cured article derived from the processes and systems preferably may have a substantially even surface.