Fluorescent Marker for Eco-Friendly Vehicle Plastic Identification

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Solution Overview

Problem

Current methods for recycling plastic materials in the automobile industry lack an effective discrimination method to determine whether materials are eco-friendly, relying solely on manufacturer information, which is often unreliable, leading to environmental pollution and inefficient resource reuse.

Innovation Solution

A system and method using a photoluminescence method to discriminate eco-friendly materials by mixing a fluorescent material with plastic, measuring fluorescence intensity, and comparing it to standard values, which includes a fluorescent material supply, composite compounding, molding, and discrimination parts to determine the eco-friendliness of plastic materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manufacturer information is used to determine eco-friendly materials, then the process is simple, but the reliability is low

Engineering Contradiction:
Improvesimplicity of determination processVSAvoidreliability of eco-friendly material identification
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A fluorescent marker is introduced as an intermediary substance that is mixed with eco-friendly plastic materials during manufacturing. This marker serves as a physical tag that can be detected later, providing reliable identification without relying on manufacturer claims. The marker becomes part of the material structure, enabling objective verification of eco-friendly status.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces document-based verification (relying on manufacturer information and certificates) with a physical detection system using fluorescence measurement. By substituting the mechanical/administrative system of information verification with an optical/physical measurement system, the reliability of identification is significantly improved while maintaining operational simplicity through automated detection.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of manufacture

If plastic waste is incinerated or landfilled, then the disposal process is straightforward, but environmental pollution increases

Engineering Contradiction:
Improvesimplicity of disposal processVSAvoidenvironmental pollution from incineration and landfill
Core Design Contradiction:
Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The patent converts the harmful nature of plastic waste into a beneficial resource by enabling its identification and reuse. The fluorescent marker, which could be seen as an additional contaminant, actually serves as a useful tag that allows recycled plastic to be identified and properly reused, transforming the waste management approach from disposal to circular economy.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent changes the parameter of plastic waste from undifferentiated mass to specifically marked eco-friendly materials. By introducing the fluorescent marker, the material parameter changes, enabling selective recycling and reuse of eco-friendly plastics while excluding conventional plastics, thus reducing environmental pollution through targeted resource recovery.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If fluorescent material is mixed with plastic, then the discrimination accuracy is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improveaccuracy of eco-friendly material discriminationVSAvoidcomplexity of composite manufacturing process
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The fluorescent marker is mixed with the plastic material during the initial manufacturing process, before the product is completed. This preliminary action ensures that the marker is uniformly distributed throughout the material structure, enabling accurate detection later without requiring additional complex processing steps. The marker is incorporated at the source, simplifying the overall system.

Inventive Principle:
Principle #10Preliminary action

4Productivity

If recycled plastic materials are not properly identified, then the resource reuse is insufficient, but the discrimination method is not established

Engineering Contradiction:
Improveefficiency of resource reuseVSAvoidlack of established discrimination method
Core Design Contradiction:
ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

The fluorescent marker acts as an intermediary that bridges the gap between recycled plastic materials and the discrimination system. Instead of trying to directly analyze complex plastic compositions, the marker provides a simple, detectable signal that indicates eco-friendly status, enabling efficient resource reuse through straightforward fluorescence measurement.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 provides a reliable and efficient method to identify eco-friendly materials, reducing environmental pollution and promoting the reuse of valuable resources by accurately distinguishing recycled plastic materials through fluorescence analysis.

Implementation Method 1

a photoluminescence method in which a plastic material for a vehicle and a specific fluorescent material are mixed, and light emission (luminescence), which does not accompany heat by obtaining light energy from the outside, is measured

Methodology Applied
Scientific EffectFluorescence: Fluorescence

Data Source

PatentUS20250020590A1System for discriminating eco-friendly material for a vehicle and a method of discriminating eco-friendly material for a vehicle using same
Publication Date: 2025.01.16 HYUNDAI MOTOR CO LTD
  • US20250020590A1 patent drawing
  • US20250020590A1 patent drawing

AI summary

A system for discriminating an eco-friendly material for a vehicle, and a method of discriminating an eco-friendly material for a vehicle using the same is disclosed. More specifically, through the system for discriminating an eco-friendly material for a vehicle by using fluorescence spectroscopic analysis on an eco-friendly material for a vehicle, which can be discriminated and is made of a composite in which a fluorescent material with a unique emission characteristic and a plastic material are mixed, the discrimination method quickly and reliably discriminates an eco-friendly plastic material for a vehicle from fluorescence and spectral characteristics of the fluorescent material.