RFID Label Separator Cuts Prevent Wrinkles
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Solution Overview
Problem
RFID labels with integrated circuits and antennas often develop wrinkles during unwinding and printing, leading to incomplete or faint image printing and loss of functionality due to differences in total thickness across the label, causing gaps and detachment between the adhesive layer and the separator.
Innovation Solution
The RFID label design incorporates cuts along the gap lines formed by varying thicknesses, specifically at the circumferential edges of the inlet and the IC, to prevent wrinkles by allowing the label base material to expand and contract without lifting off the separator, ensuring consistent contact and smooth printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the label base material is made larger to cover the inlet and IC, then the adhesive contact is improved, but the thickness variation and wrinkle formation increase
Solution Approach 1:
The separator is divided into multiple sections by forming cuts that extend through the separator thickness. These cuts create independent segments that can move relative to each other, allowing the adhesive paper sheet to conform to the inlet and IC without creating wrinkles in the overall label structure.
Solution Approach 2:
The cuts are strategically positioned at specific locations where thickness variation occurs (at the inlet and IC areas). This localized modification allows the material to accommodate thickness changes in specific regions while maintaining uniformity in other areas, preventing wrinkle formation where needed without compromising adhesive contact.
2Adaptability or versatility
If the label is designed with varying thickness to accommodate inlet and IC, then the component integration is improved, but wrinkle formation during unwinding and printing increases
Solution Approach 1:
The separator is segmented by forming cuts that extend through its thickness, creating multiple independent sections. This segmentation allows each section to independently accommodate the inlet and IC components without causing wrinkles to propagate across the entire label during unwinding and printing processes.
Solution Approach 2:
The cuts in the separator act as intermediaries that decouple the thickness variation caused by the inlet and IC from the overall label structure. These cuts allow the adhesive paper sheet to conform to the components while the separator maintains its structural integrity, preventing wrinkle formation during handling and processing.
3Manufacturing precision
If specialized RFID label manufacturing equipment is used, then the manufacturing precision is improved, but the device complexity and production cost increase
Solution Approach 1:
The separator cut design enables the use of conventional multi-purpose label manufacturing equipment to produce RFID labels with varying thickness. The cuts allow the same equipment that produces uniform labels to also handle labels with inlet and IC components, eliminating the need for specialized manufacturing equipment while maintaining production quality.
Data Source
AI summary
A RFID label that has no wrinkle formed therein when the RFID label is unwound and fed from a roll or when printing is executed thereon by a label printer, and a manufacturing method therefor: The RFID label includes an adhesive paper sheet including a label base material and a first adhesive layer, an RFID inlet formed by disposing an IC and an antenna on one or both sides of a base material. The RFID inlet has a smaller area than that of the adhesive paper sheet. A second adhesive layer is disposed on a side of the RFID inlet that is opposite to that of the adhesive paper sheet, and a separator laminated therein. A gap line across the total thickness of the RFID label differs depending on the disposition of constituent members of the inlet. One or a plurality of cuts, each penetrating the separator, are each formed at a position at which the cut extends over the gap line or each cut is in the vicinity of the gap line.