Card With Embedded 3D Image Using Deformable Layer
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Solution Overview
Problem
Existing methods for creating embossed patterns on cards result in distorted, rounded edges and lack of sharpness due to the nature of screen printing and lamination processes, which prevent the formation of clear and well-defined 3D images.
Innovation Solution
A method involving the use of a deformable layer with a conformable and semi-conformable material assembly, where an engraved laminating plate applies pressure and heat to emboss the pattern, allowing the conformable layers to fill depressions and set the image between two conformable layers, maintaining flat surfaces and sharp details.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If screen printing is used to create embossed patterns on cards, then the manufacturing process is simple and cost-effective, but the resulting patterns have distorted, rounded edges and lack sharpness
Solution Approach 1:
The manufacturing process is divided into two distinct stages: first creating the embossed pattern structure, then separately applying the conformable coating layer. This segmentation allows each stage to be optimized independently - the embossing creates sharp edges while the coating provides uniform coverage without distorting the pattern.
Solution Approach 2:
The embossed pattern is created in advance before applying the conformable coating layer. By preliminarily forming the sharp-edged pattern structure, the subsequent coating application does not distort the edges, preserving the desired sharpness while still providing the benefits of coating coverage.
2Reliability
If pressure and heat are applied during lamination to transfer the pattern, then the pattern is embedded into the card, but the conformable material flows and distorts the pattern edges
Solution Approach 1:
The pattern structure is preliminarily formed through embossing before the lamination step. This preliminary structuring ensures that when pressure and heat are applied during lamination, the pattern edges are already established and protected from distortion by the flowing conformable material.
Solution Approach 2:
Instead of applying conformable material first and then trying to emboss through it (which causes edge distortion), the invention inverts the sequence by first creating the embossed pattern structure and then applying the conformable coating. This reversal prevents the coating material from distorting the pattern edges during application.
3Manufacturing precision
If the conformable layer is made thinner to reduce distortion, then the pattern sharpness improves, but the card becomes more susceptible to internal imperfections
Solution Approach 1:
The conformable coating layer is applied after the pattern structure is already established. This preliminary formation of the pattern allows the coating to be applied as a thin layer that conforms to the existing structure without causing edge distortion, while still providing sufficient coverage to mask internal imperfections.
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 enables the creation of cards with sharp, well-defined 3D patterns and flat surfaces, achieving a clear and precise image by controlling material flow and refractive indices, while minimizing internal imperfections and surface distortions.
Implementation Method 1
sufficient pressure and heat are applied to the first assembly to emboss the deformable layer with the desired pattern
Implementation Method 2
cause a flow of material from the overlying conformable layers to fill the 'depressions' in the deformable layer
Implementation Method 3
sufficient pressure and heat are applied to the first assembly to emboss the deformable layer
Data Source
AI summary
A card includes a layer of deformable material embossed with a three dimensional (3-D) pattern. A first layer is in direct contact with and overlies the embossed deformable layer. A second layer is in direct contact with and underlies the embossed deformable layer. The first layer is of conformable material and extends within the embossed pattern for filling, setting and maintaining the embossed pattern in a fixed condition. The second layer is of conformable material and conforms to the embossed pattern set in the deformable layer.