Ceramic Transaction Card with Composite Substrate
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Solution Overview
Problem
Conventional transaction cards made from thermoplastic materials are prone to degradation due to environmental factors and lack durability, while metal cards face issues like electrostatic discharge and interference with radio frequency radiation.
Innovation Solution
A transaction card with a monolithic ceramic body, including pockets for components like magnetic stripes and microchips, and a substrate layer with ceramic coatings to enhance durability and prevent interference, while maintaining a premium feel and look.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional thermoplastic materials are used for transaction cards, then manufacturing is simple and cost-effective, but durability and resistance to environmental degradation are poor
Solution Approach 1:
The patent uses composite materials by combining ceramic layers with substrate layers (metal or plastic). The ceramic layer provides enhanced durability, scratch resistance, and environmental stability, while the substrate layer maintains manufacturing feasibility and structural support. This composite structure resolves the contradiction between improved reliability and ease of manufacture.
2Reliability
If metal materials are used for premium transaction cards, then durability and premium feel are enhanced, but electrostatic discharge and radio frequency interference occur
Solution Approach 1:
The patent applies local quality by using ceramic material specifically for the surface layer where durability and scratch resistance are needed, while the underlying substrate can be a different material. This localized use of ceramic provides the durability benefits without requiring the entire card to be metal, thereby avoiding electrostatic discharge issues.
Solution Approach 2:
The patent effectively replaces the metal substrate with a non-metallic alternative (plastic or ceramic-composite substrate) that is less prone to electrostatic discharge. This substitution maintains the durable surface properties while eliminating the harmful electrostatic effects associated with metal cards.
3Reliability
If metal materials are used for premium transaction cards, then durability is enhanced, but radio frequency interference with contactless transactions occurs
Solution Approach 1:
The patent replaces the metal substrate with non-metallic materials (plastic or ceramic-composite) that do not interfere with radio frequency signals. This substitution eliminates the RFID interference problem while maintaining card durability through the ceramic surface layer, allowing contactless transactions to function properly.
4Strength
If conventional plastic cards are used, then manufacturing is simple, but the cards are easily bent or severed
Solution Approach 1:
The patent creates a composite card structure with a ceramic layer bonded to a substrate layer. The ceramic layer provides exceptional strength, scratch resistance, and resistance to bending and severing, while the substrate provides structural support and flexibility. This composite approach achieves high strength without excessive structural complexity.
Data Source
AI summary
A process for making a card includes the steps of forming a core layer having a first surface and a second surface, disposing an uncured decorative ceramic layer of ceramic particles disposed in a resin binder over the first surface of the core layer, such as by spray coating, and curing the uncured decorative ceramic layer to form a cured decorative ceramic layer. Card products of the process may have a core layer of metal, ceramic, or a combination thereof that form a bulk of the card.