RFID Tire Label Structure for Vulcanization Stability
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Solution Overview
Problem
Existing methods for labeling rubber-based articles, such as tires, face challenges during the vulcanization process due to high temperatures and pressures, leading to label degradation and instability, which affects identification and tracking during production, distribution, and inventory management.
Innovation Solution
Development of tire tracking labels comprising a face layer, optional primer layer, adhesive layer, and RFID component, designed to withstand vulcanization conditions, allowing for durable and long-term identification and tracking of rubber-based articles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive labels are applied to green rubber-based articles before vulcanization, then identification and tracking during production is enabled, but the labels degrade and become unstable under high temperatures and pressures during vulcanization
Solution Approach 1:
The patent applies parameter changes by selecting adhesive compositions with specific glass transition temperatures (Tg) and service temperatures that remain stable under vulcanization conditions. The adhesive layer is formulated to maintain its bonding properties at elevated temperatures and pressures, preventing label degradation while ensuring reliable attachment to the rubber article throughout the vulcanization process and product lifecycle.
2Reliability
If labels are applied to rubber-based articles before vulcanization, then tracking during production and distribution is achieved, but the high temperature and pressure of vulcanization causes label instability
Solution Approach 1:
The patent employs composite materials by constructing a multi-layer label structure comprising a face layer, adhesive layer, and release liner. Each layer is specifically engineered to withstand vulcanization conditions: the face layer provides mechanical strength and thermal stability, the adhesive layer maintains bonding integrity at high temperatures, and the release liner protects the adhesive before application. This composite structure ensures identification integrity throughout the vulcanization process.
3Duration of action of stationary object
If conventional adhesive labels are used on rubber articles, then basic identification is provided, but the labels fail to maintain functionality throughout the article's lifetime under extreme conditions
Solution Approach 1:
The patent extends label lifespan by formulating the adhesive layer with specific rheological parameters including glass transition temperature (Tg) and service temperature ranges that ensure long-term stability. The adhesive composition is designed to resist thermal aging, oxidation, and mechanical stress throughout the rubber article's service life, maintaining bonding strength and identification functionality from manufacturing through end-of-life.
Data Source
AI summary
Identification labels and their incorporation in rubber-based articles are described. The labels include RFID components and can be incorporated in tires. The labels can withstand the relatively harsh conditions associated with vulcanization.