Foil Stamping Die Edge Geometry for Precise Pattern Transfer
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Solution Overview
Problem
Foil adherence to a printing object exceeds the edge of an uneven pattern during foil stamping, leading to increased deviation between three-dimensionally formed portions and colored areas, deteriorating the design property of the printing object.
Innovation Solution
A foil stamping die with a pattern-shape portion having a uniform thickness along its edge and protrusions to control foil adherence, ensuring the foil transfers only within the intended pattern boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If foil stamping is applied to transfer foil to a printing object, then the printing object is decorated with a pattern, but the foil adheres to a range greatly exceeding the edge of the pattern, causing deviation between the three-dimensionally formed portion and colored portion
Solution Approach 1:
The pattern-shape portion is divided into multiple regions with different thicknesses: a first region with a first thickness and a second region with a second thickness greater than the first thickness. This segmentation allows different portions of the foil to adhere to different regions, preventing excessive adherence beyond the pattern edge while maintaining design properties.
Solution Approach 2:
Different regions of the pattern-shape portion are given different local properties (thicknesses) to achieve different functions. The first region allows controlled foil adherence for pattern formation, while the second region with greater thickness prevents foil from adhering beyond the intended pattern boundaries, thus solving the precision issue.
2Reliability
If the foil adheres to a range greatly exceeding the edge of the pattern, then the transferring process covers the entire surface, but the design property of the printing object deteriorates due to deviation between three-dimensionally formed portion and colored portion
Solution Approach 1:
The pattern-shape portion is segmented into regions with different thicknesses to control where the foil adheres. This ensures the foil adheres precisely to the intended pattern area rather than spreading beyond it, maintaining design property while achieving precise adherence control.
Solution Approach 2:
The thickness parameter of the pattern-shape portion is varied across different regions. By changing this physical parameter, the foil's adherence behavior is controlled - thinner regions allow adherence for pattern formation, while thicker regions prevent excessive adherence, thus maintaining design reliability.
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
Enhances the design property of the printing object by minimizing foil adherence beyond pattern edges, maintaining the intended design integrity.
Implementation Method 1
a foil is placed on an upper surface of the vehicle interior component... to transfer the foil to the vehicle interior component
Data Source
AI summary
The present invention relates to a foil stamping die used for foil stamping, and a method of manufacturing a vehicle interior component using the foil stamping die. An object of the present invention is to provide a foil stamping technique capable of enhancing the design property of a printing object. In a foil stamping die capable of transferring a foil to the printing object while applying an uneven pattern to a surface of the printing object by pressing the die toward the printing object on which the foil is placed, a pattern-shape portion which is a portion corresponding to the uneven pattern is provided, and an edge of the pattern-shape portion has the same thickness over the entire area thereof.