Ceramic Transaction Cards with Laser Marking
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Solution Overview
Problem
Conventional transaction cards made from thermoplastic materials are susceptible to damage from exposure to moisture and sunlight, leading to warping, cracking, and loss of functionality.
Innovation Solution
The development of ceramic-containing transaction cards with a card body comprising a ceramic material, featuring a primary surface and a secondary surface, with laser-marked and laser-etched elements, and incorporating a microchip for enhanced security and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If thermoplastic materials are used for transaction cards, then ease of manufacture is improved, but durability and resistance to environmental exposure deteriorate
Solution Approach 1:
The patent applies composite materials by combining ceramic particles (such as alumina, silica, or zirconia) with thermoplastic matrix materials to create a hybrid card body. This composite structure provides the durability and environmental resistance of ceramics while maintaining the manufacturability and flexibility of thermoplastics. The ceramic particles are dispersed throughout the thermoplastic matrix to enhance hardness, scratch resistance, and resistance to moisture and UV degradation.
2Strength
If ceramic materials are used for transaction cards, then strength and durability are improved, but manufacturing complexity increases
Solution Approach 1:
The patent replaces traditional mechanical ceramic processing methods (such as cutting, grinding, and assembling separate ceramic layers) with injection molding technology. The ceramic-containing thermoplastic material is injected into molds under controlled conditions, allowing complex card geometries to be formed in a single step. This substitution of mechanical processing with thermal-forming processes significantly reduces manufacturing complexity while maintaining the strength benefits of ceramic materials.
3Ease of manufacture
If conventional materials are used for transaction cards, then manufacturing cost is reduced, but resistance to moisture and sunlight deterioration
Solution Approach 1:
The patent modifies the chemical composition parameters of the thermoplastic material by incorporating ceramic particles and selecting specific polymer matrices (such as polyesters, polyacrylonitrile, or vinylidene fluoride-based polymers) that inherently resist moisture absorption and UV degradation. Additionally, the curing or molding parameters are optimized to ensure complete densification and minimal porosity, further enhancing environmental resistance without requiring expensive additional coating layers.
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 ceramic transaction cards exhibit increased strength and durability, resisting deformation and environmental exposure, while the laser treatments provide secure and visually appealing features, reducing the risk of fraudulent reproduction and enhancing market differentiation.
Implementation Method 1
a laser marked feature disposed on the card body and a laser etched feature disposed on the card body
Data Source
AI summary
A transaction card that includes a card body that can include a ceramic material. The card body can include a primary surface and a secondary surface, a laser marked feature disposed on the card body and a laser etched feature disposed on the card body. A method of making a transaction card can include forming a ceramic material slurry comprising a ceramic material and a binder, forming a green body from the ceramic material slurry, firing the green body at a firing temperature to create a fired ceramic body, grinding the fired ceramic body into a card body, and polishing a primary surface of the card body.