RFID Label Image Formation on Transparent Base
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Solution Overview
Problem
Conventional RFID labels face issues with image distortion due to the thickness of IC chips and antenna conductors, damage from heat or pressure during printing, and difficulties in maintaining close contact between sheet members, leading to storage inefficiencies and potential damage to IC chips and antenna conductors during the production process.
Innovation Solution
A method and device for producing RFID labels where an image is formed on a transparent first label base material before joining it with a second label base material containing the IC chip and antenna conductor, ensuring the image is not damaged and maintaining the quality of the printed image, while also using a sheet member with an adhesive layer and a separation member to prevent damage and improve storage efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If an image is formed on the RFID label after embedding the IC chip and antenna conductor, then the RFID label can be produced with functional elements, but the image will be distorted by the thickness of the IC chip or antenna conductor and become unclearly blurred
Solution Approach 1:
The patent applies preliminary action by forming the image on the first label base material before joining it with the second label base material containing the IC chip and antenna conductor. This sequence ensures that the image formation process is not affected by the thickness or surface irregularities of the electronic components, thereby maintaining high image quality while accommodating the complex multi-layer label structure.
2Productivity
If thermal method is used to form an image on the RFID label, then the image can be formed efficiently, but heat applied may cause damage to the resonance circuit and IC chip
Solution Approach 1:
The patent segments the label into two separate base materials: the first label base material for image formation and the second label base material containing the IC chip and antenna conductor. This segmentation allows the image to be formed on the first material using thermal methods without exposing the sensitive electronic components on the second material to damaging heat, thus maintaining both productivity and reliability.
3Device complexity
If the sheet member with IC chip and antenna conductor is stored without reducing gap, then storage area can be simplified, but the number of sheets that can be stored is reduced and storage efficiency is lowered
Solution Approach 1:
The patent utilizes the thickness dimension by joining the first label base material (with image) and the second label base material (with IC chip and antenna conductor) into a integrated composite structure. This dimensional integration eliminates gaps between separate sheets, allowing more label units to be stored in the same storage space while maintaining structural simplicity.
4Ease of manufacture
If image is formed on the surface not joined to the second label base material, then the image can be formed easily, but the image will be subject to contact damage from external objects
Solution Approach 1:
The patent forms the image preliminarily on the first label base material before joining it to the second label base material. The subsequent joining process creates a protective layer that shields the image from external contact damage, thus maintaining both ease of manufacture and image protection reliability.
Data Source
AI summary
A method for producing a RFID label comprises conveying a first label base material which is transparent from a first holding portion holding the first label base material, forming an image on a surface of the first label base material, conveying a second label base material including at least one of a RFID antenna conductor and an IC chip from a second holding portion holding the second label base material and joining the second label base material and the first label base material on which an image has been formed together, wherein, when an image is formed on the first label base material, the image is formed on a surface of the first label base material, the surface being joined to the second label base material.