RFID Antenna Printing on Packaging Material
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Solution Overview
Problem
Current packaging materials lack effective methods for assigning unique identifiers to individual containers and enabling communication with external devices, particularly for improving shelf management, logistics, and recyclability.
Innovation Solution
Incorporating RFID tags printed with a graphene-based conductive substance during the packaging material converting process, allowing for high-speed operation and food safety compliance, with the option to include resonance circuits and a RFID chip for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If RFID tags are added to packaging material to enable unique identification and communication capabilities, then shelf management and logistics are improved, but device complexity and manufacturing complexity increase
Solution Approach 1:
The patent combines the RFID antenna directly with the packaging material laminate by printing conductive ink patterns onto the laminate surface during the converting process. This merging of the RFID component with the packaging material eliminates separate RFID tag attachments and integrates identification functionality into the existing packaging structure, thereby reducing overall device complexity while maintaining traceability capabilities.
Solution Approach 2:
The packaging laminate is designed to serve multiple functions: it provides barrier protection, structural integrity, and now also RFID communication capabilities. By making the laminate itself carry the RFID antenna, the packaging material becomes a multi-functional component that simultaneously protects the product and enables tracking, reducing the need for additional separate components.
2Productivity
If RFID tags are printed during the converting process to enable high-speed operation, then productivity is improved, but manufacturing precision requirements increase
Solution Approach 1:
The RFID antenna patterns are printed onto the packaging laminate during the converting process, before the material is formed into final packages. This preliminary action allows the RFID components to be applied to the flat laminate at high speed using conventional printing techniques, and the precise positioning is maintained through the subsequent forming and sealing processes because the antenna is already fixed on the material.
Solution Approach 2:
The patent replaces mechanical RFID tag attachment methods (such as lamination or adhesives) with a printing process that deposits conductive ink patterns directly onto the laminate. This substitution enables high-speed application consistent with modern converting speeds (up to 400 m/min) while achieving precise positioning through controlled printing processes rather than mechanical handling.
3Reliability
If conductive materials are used for RFID antennas to enable communication, then RFID functionality is achieved, but food safety compliance may be compromised due to potential contamination
Solution Approach 1:
The patent uses a printed conductive ink layer that is integrated into the disposable packaging laminate. Rather than using permanent metallic components that could potentially detach and contaminate food, the conductive pattern is applied as a thin, bonded layer that becomes part of the single-use packaging material, eliminating the risk of metallic contamination while maintaining RFID functionality throughout the product's lifecycle.
Solution Approach 2:
The packaging laminate is structured as a multi-layer composite with the RFID antenna formed by printing conductive material (such as carbon-based or metal nanoparticle ink) onto one of the laminate layers. This composite structure integrates the conductive element within the food-contact material hierarchy, ensuring that the conductive layer is properly contained and bonded, thereby achieving RFID communication while maintaining food safety compliance.
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 unique identification and communication capabilities for packaging containers, improving shelf management and logistics while ensuring compatibility with high-speed production and food safety regulations.
Implementation Method 1
The material used for printing the RFID antenna is a conductive substance, in particular a carbon-based substance, even more particularly a graphene-based substance
Data Source
AI summary
A method for providing a packaging material is provided. The method comprises feeding a web of packaging material through a packaging material processing unit; determining a target position of the packaging material; and controlling a printing unit to print an RFID antenna at the target position, wherein the material used for printing the RFID antenna is conductive substance. A packaging material is also provided.