Luminescent Plastic Authenticity Verification via Wavelength Detection
Solution Overview
Problem
Existing methods for determining the authenticity of plastic products, particularly expensive engineering plastics and consumer goods containers, are limited as they rely on visual identification and can be easily counterfeited, affecting the security and design of the products.
Innovation Solution
Incorporating a luminescent material within the plastic product that emits light of a specific wavelength when irradiated with incident light, allowing for authenticity determination using a dedicated device without visual inspection, and manufacturing the product using injection molding processes to ensure the material is evenly distributed and not easily recognizable by the naked eye.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If visual identification methods are used to determine authenticity, then consumers can easily identify security elements, but counterfeiters can easily replicate similar images and the security is compromised
Solution Approach 1:
The patent replaces visual identification (mechanical/optical system) with a detection system that uses dedicated devices to detect luminescent material properties. The authenticity determination is performed by detecting the luminescent characteristics rather than relying on visual observation of images, thereby preventing counterfeiters from replicating security features.
Solution Approach 2:
The patent utilizes luminescent materials that emit light at specific wavelengths when excited. The security feature is based on the luminescent color/wavelength characteristics rather than visible images. The determination device detects these specific wavelength emissions to verify authenticity, making it impossible for counterfeiters to replicate the exact luminescent properties.
2Reliability
If security elements are applied to plastic products, then authenticity can be determined, but the visual design of the product is affected and application range is limited
Solution Approach 1:
The patent applies luminescent material to specific local regions within the plastic product rather than covering the entire surface. The luminescent material is incorporated into the base material at predetermined locations, allowing authenticity determination while maintaining design flexibility in other areas of the product.
Solution Approach 2:
The patent uses composite materials by combining luminescent material with the base plastic material. The luminescent material is dispersed or incorporated into the plastic matrix during manufacturing, creating a composite structure that provides security functionality without requiring separate visible security elements that would constrain design.
3Reliability
If luminescent material is added to plastic product, then authenticity can be determined without visual inspection, but the manufacturing process becomes more complex
Solution Approach 1:
The patent incorporates the luminescent material into the plastic product during the initial manufacturing process (such as injection molding). This preliminary incorporation ensures uniform distribution and proper integration of the luminescent material, eliminating the need for subsequent complex assembly steps or separate application processes.
Solution Approach 2:
The patent controls the concentration, distribution, and physical state of the luminescent material within the plastic matrix. By adjusting parameters such as material concentration (e.g., 0.01-10 wt%), particle size, and dispersion methods, the manufacturing process can be optimized to achieve reliable authenticity determination while maintaining process feasibility.
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 method enables secure and reliable authenticity verification of plastic products using a dedicated device, making counterfeiting more difficult and maintaining the product's design integrity, while allowing for easy detection of the luminescent material's presence without affecting the product's appearance.
Implementation Method 1
a luminescent material included in the base and configured to emit light including a second wavelength with respect to incident light including a first wavelength
Implementation Method 2
a luminescent material included in the base and configured to emit light including a second wavelength with respect to incident light including a first wavelength
Data Source
AI summary
Disclosed is a plastic product with authenticity to be determined, the plastic product including: a base made of a plastic material, and a luminescent material included in the base and configured to emit light including a second wavelength with respect to incident light including a first wavelength, in which the determination of the authenticity is performed by irradiating the plastic product with the incident light and then detecting the emitted light. According to the present invention, it is possible to easily determine the authenticity of the plastic product by a simple method of detecting a spectrum of the light emitted from the plastic product.