Semitransparent Cover Foil for Forgery-Resistant Packaging
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Solution Overview
Problem
Current tablet packaging lacks customer-friendliness and forgery resistance, with existing materials not effectively allowing for quick object recognition or authentication without technical aids, especially in scenarios like altered consciousness.
Innovation Solution
A packaging design featuring a plastic foil molded part and a cover foil with a semitransparent function layer that changes color when viewed in incident versus transmitted light, combined with additional anti-forgery features like opaque layers, metallization, and laser-treated markings, to enhance visibility and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional cover foil is used, then the packaging provides basic protection, but it lacks forgery resistance and quick authentication features
Solution Approach 1:
The patent applies a semitransparent function layer that exhibits different visual appearances under incident light versus transmitted light. This color change effect provides immediate visual authentication without requiring complex additional components, directly resolving the contradiction between enhanced reliability and minimized structural complexity.
Solution Approach 2:
The cover foil is constructed as a composite material system combining a semitransparent carrier substrate with a specialized function layer. This composite structure integrates multiple functionalities (protection, authentication, visibility) within a single integrated component, achieving high forgery resistance without proportionally increasing overall packaging complexity.
2Illumination intensity
If the cover foil is made transparent for object recognition, then visibility is improved, but forgery resistance decreases
Solution Approach 1:
The semitransparent function layer creates a optical duality where the cover foil appears transparent under incident light for object recognition, but displays distinctive color characteristics under transmitted light for authentication. This resolves the contradiction by making the same material serve both visibility and security functions through context-dependent optical properties.
Solution Approach 2:
The patent exploits changes in optical parameters (transparency, color appearance) based on lighting conditions. The function layer's optical properties dynamically adjust according to whether incident or transmitted light is used, enabling the material to provide both high visibility and high forgery resistance under different viewing conditions simultaneously.
3Reliability
If additional anti-forgery features are added, then forgery resistance is improved, but manufacturing complexity increases
Solution Approach 1:
The patent merges the authentication function directly into the cover foil's base structure through the semitransparent function layer. By combining the protective cover foil and authentication features into a single integrated component manufactured in one process, the invention avoids the manufacturing complexity increase that would result from adding separate authentication elements.
Solution Approach 2:
The use of composite materials allows multiple functions (protection and authentication) to be integrated at the material level rather than requiring separate components. This material-level integration simplifies manufacturing by enabling single-step production processes that simultaneously create both the protective barrier and the authentication features.
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 packaging allows for quick and uncomplicated object recognition and elevated forgery resistance, enabling consumers to verify authenticity without additional tools, even in altered states, while providing enhanced durability and security features.
Implementation Method 1
the semitransparent function layer is constituted such that the cover foil has a first, visually recognizable color upon viewing in incident light and has a second, visually recognizable color upon viewing in transmitted light
Data Source
AI summary
A packaging comprising a plastic foil molded part and a cover foil, wherein the plastic foil molded part defines the front side of the packaging and the cover foil defines the back side of the packaging and the cover foil is based on a carrier substrate provided with a semitransparent function layer, wherein the semitransparent function layer is constituted such that the cover foil has a first, visually recognizable color upon viewing in incident light and has a second, visually recognizable color upon viewing in transmitted light.