RFID Antenna Web Slitting and Adhesive Bonding
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Solution Overview
Problem
Existing methods for producing RFID transponder webs face challenges in efficiently separating and connecting RFID chips to antennas, as wide strap webs with residual adhesive complicate the process, leading to inefficiencies in manufacturing and application.
Innovation Solution
A method involving a composite antenna web with alternating rows of antennas on carrier webs, where the webs are delaminated and slit to create narrow antenna webs, allowing for easier separation and connection to RFID chips, utilizing patterned adhesive coatings and slotted metal webs to minimize waste and facilitate precise antenna formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wide strap webs are used with residual adhesive, then manufacturing process is simplified, but separation and connection efficiency deteriorates
Solution Approach 1:
The patent divides the wide strap web into multiple narrow individual straps through slitting. This segmentation allows each strap to be processed and connected to antennas independently, resolving the contradiction by enabling efficient separation while maintaining manufacturing simplicity through the use of a continuous web structure during production.
2Area of stationary object
If straps are arranged in high density parallel columns, then web width is reduced, but separation difficulty increases
Solution Approach 1:
The patent applies adhesive patterns to the carrier web before attaching the straps, creating pre-defined separation zones. This preliminary action enables easy separation of individual straps from the web without requiring complex manual separation processes, thus resolving the contradiction between high-density arrangement and separation ease.
3Manufacturing precision
If patterned adhesive coating is applied, then antenna connection precision is improved, but manufacturing complexity increases
Solution Approach 1:
The patent replaces complex mechanical alignment and positioning systems with a patterned adhesive coating system. The adhesive patterns are applied in predetermined locations that automatically guide the straps to their correct positions on the antennas, simplifying the overall manufacturing process while maintaining high connection precision.
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 enables efficient production of narrow antenna webs with reduced waste, improving the connection process between RFID chips and antennas, enhancing the manufacturing efficiency and applicability of RFID transponder webs.
Implementation Method 1
moving the heated drums to bring the straps and the antenna web together to connect the straps to the antennas
Implementation Method 2
providing a web of RFID straps, separating the straps one-by-one from the strap web, applying the straps one-by-one to a heated, vacuum, second drum
Data Source
AI summary
There are disclosed methods of making RFID transponder webs and intermediate webs such as RFID strap webs and antenna webs, as well as such webs per se.