Self-Adhesive RFID Label Production via Homogeneous Adhesion
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Solution Overview
Problem
Existing methods for producing self-adhesive RFID labels are not simplified, often requiring complex processes and multiple materials, which can lead to inefficiencies and potential adhesion faults due to different adhesive materials used for the inlay and face strips.
Innovation Solution
A method where the coupling antenna with the chip is adhered directly to a self-adhesive secondary antenna with an adhesive layer, using a simplified process that includes using aluminum foil for the antennas and paper for the backing strips, allowing for continuous production of self-adhesive RFID labels with inductive coupling and minimal material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different adhesive materials are used for the inlay and face strips, then each layer can be optimized for its specific function, but adhesion faults may occur due to material incompatibility and the manufacturing process becomes more complex
Solution Approach 1:
The patent applies homogeneity by using the same adhesive material for both the inlay and face strip layers. This ensures consistent adhesion properties throughout the RFID label structure, eliminating adhesion faults caused by material incompatibility while simplifying the manufacturing process to a single adhesive application step.
2Adaptability or versatility
If multiple materials are used for different layers, then each layer can be optimized for its specific requirements, but the overall material complexity increases
Solution Approach 1:
The patent applies universality by using a single adhesive material that serves both the inlay and face strip functions. This universal adhesive approach reduces material variety while still meeting the specific requirements of each layer through proper adhesive selection and application parameters.
3Manufacturing precision
If complex production processes are used, then high-quality RFID labels can be produced, but production efficiency decreases and costs increase
Solution Approach 1:
The patent merges the adhesive application steps for the inlay and face strip into a single process step. This combining of operations maintains label quality through consistent adhesive properties while significantly improving production efficiency by reducing process time and operational complexity.
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 simplifies the production of self-adhesive RFID labels, reduces material complexity, and ensures consistent adhesion by using the same adhesive for all layers, enhancing efficiency and cost-effectiveness while being environmentally friendly.
Implementation Method 1
the coupling antenna and the RFID antenna are inductively coupled
Data Source
AI summary
The invention relates to method for producing an RFID label. According to said method, a coupling antenna (2) arranged on a web-shaped support material (1) comprising an RFID chip (4) arranged thereon is glued onto a secondary antenna (10). The aim of the invention is to provide an RFID label that can be produced from few recyclable materials with little complication and in an environmentally friendly manner. The invention is characterized in that first the coupling antenna (2) comprising the chip (4) is glued onto a self-adhesive secondary antenna (10) in one step, the secondary antenna having a backing adhesive layer (12).