Sealing Label with Fluorescent Wavelength Conversion Layer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sealing labels lack effective methods for reliable detection and authentication, especially on transparent packages, and do not prevent tampering or unauthorized opening.
Innovation Solution
A sealing label with a wavelength conversion layer containing a fluorescent substance, which emits fluorescence light when excited, allowing for reliable detection and authentication through imaging, and features like a modulating structure and waveguiding layer to provide a unique code and tamper-evident properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a sealing label is applied to a transparent package, then the package appearance is preserved, but reliable detection and authentication of the label becomes difficult
Solution Approach 1:
The patent applies a fluorescent substance within the label that emits visible light when excited by UV or blue light. This causes the label to appear bright or glow under specific illumination, enabling easy detection and authentication while maintaining package transparency under normal lighting conditions.
2Measurement precision
If a wavelength conversion layer with fluorescent substance is added to the label, then label detection and authentication is enabled, but device complexity increases
Solution Approach 1:
The fluorescent substance is integrated directly into the adhesive layer or carrier layer of the label, merging the authentication function with existing label components. This eliminates the need for separate authentication mechanisms while providing reliable detection capabilities.
3Reliability
If a modulating structure is added to provide a unique code, then authentication capability is improved, but manufacturing complexity increases
Solution Approach 1:
The modulating structure varies the concentration of fluorescent substance or the thickness of the fluorescent layer to create unique codes. This approach uses simple parameter variations during manufacturing rather than complex additional structures, maintaining ease of production while providing reliable authentication.
4Use of energy by moving object
If the fluorescent substance is distributed in a relatively thick material layer, then fluorescence quantum yield is optimized, but consumption of fluorescent substance increases
Solution Approach 1:
The patent optimizes the thickness and concentration parameters of the fluorescent substance distribution to achieve the desired balance between quantum yield and substance consumption, distributing the fluorescent material in a relatively thick layer to maximize energy conversion efficiency.
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 reliable detection of label position and authenticity, prevents tampering, and allows for tracking and authentication of packages throughout the supply chain without altering the package's appearance, ensuring the integrity of contents like medicinal products.
Implementation Method 1
the label comprises a wavelength conversion layer, which comprises a fluorescent substance
Implementation Method 2
A part of the fluorescence light may be confined to the waveguiding layer by total internal reflection
Implementation Method 3
The label may comprise a waveguiding layer, which comprises the fluorescent substance
Data Source
AI summary
A method, comprising:providing a combination of a package and a label attached to the package, wherein the label comprises a fluorescent substance,illuminating the label with excitation light so as to cause the label to emit fluorescence light,capturing an image of the label by using an imaging unit, anddetecting the position of the label by analyzing the captured image and/or detecting a degree of adhesion of the label by analyzing the captured image.