Reversible Adhesive Security Tag Attachment System
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Solution Overview
Problem
Conventional security tags often damage the items they are meant to protect, and existing non-hard tag solutions lack the necessary security and durability to prevent theft effectively.
Innovation Solution
A system utilizing a reversible adhesive for attaching security tags to items, which can be thermally affected by an electromagnetic signal to detach without causing damage, providing a secure and cost-effective alternative to traditional hard tag mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional hard tags are used to attach security tags to items, then security protection is improved, but item damage occurs due to puncture holes
Solution Approach 1:
The patent replaces the mechanical puncture-based attachment system with a thermal adhesive bonding system. The adhesive is applied to the back of the hard tag and bonded to the item through heat activation, eliminating the need for puncture holes and mechanical fasteners that damage the item.
Solution Approach 2:
The patent utilizes changes in the physical state of the adhesive material through temperature variations. The adhesive transitions from a non-bonding state at room temperature to a bonding state when heated, allowing secure attachment without mechanical damage. The same parameter change enables clean removal by reheating.
2Ease of manufacture
If swing tickets with plastic pins are used to attach security tags, then cost is reduced and item damage is minimized, but security level decreases as tags can be easily removed
Solution Approach 1:
The patent employs a cost-effective adhesive material that provides temporary but secure bonding. The adhesive is designed to be removable through thermal activation, creating a disposable attachment mechanism that is both economical and secure during the protection period.
Solution Approach 2:
The adhesive acts as an intermediary substance between the hard tag and the item. This intermediary provides the bonding function that mechanical pins provide in swing tickets, but through chemical adhesion rather than mechanical penetration, achieving both security and cost-effectiveness.
3Object-affected harmful factors
If reversible adhesive is used to attach security tags, then item damage is prevented and cost is reduced, but attachment security may be compromised
Solution Approach 1:
The patent utilizes phase transition of the adhesive material from a soft, non-bonding state to a hardened, bonding state through thermal activation. This phase change creates a strong bond that provides secure attachment while remaining reversible through controlled reheating, preventing both item damage and tag removal.
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
The reversible adhesive system allows for secure attachment and removal of security tags without damaging the items, offering higher security than non-hard tag solutions while reducing costs and minimizing item damage.
Implementation Method 1
which can be thermally affected by an electromagnetic signal to detach without causing damage
Data Source
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AI summary
A method and system for security tag attachment using a reversible adhesive in which a security tag has an outer surface and an inner volume. The tag includes at least one of an Electronic Article Surveillance (EAS) element and a Radio Frequency Identification (RFID) element disposed within the inner volume. The system also includes a reversible adhesive disposed on at least a portion of the outer surface.