Biodegradable Card Substrate with Protective Coating
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Solution Overview
Problem
Conventional cards are made from toxic and environmentally unfriendly materials, leading to environmental damage and high production costs, with a need for biodegradable and durable alternatives.
Innovation Solution
Biodegradable cards made from environmentally friendly materials like cellulose with a high coercivity magnetic stripe and a protective biological coating, ensuring the card degrades over time without harming the environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional plastic or metal materials are used for cards, then durability and functionality are improved, but environmental harm and production costs increase
Solution Approach 1:
The patent changes the material parameters from conventional plastic/metal to biodegradable alternatives such as paper, cardboard, or fabric substrates. This parameter change maintains sufficient mechanical durability for card functionality while eliminating persistent environmental harm, as these materials naturally decompose after use.
Solution Approach 2:
The patent employs composite material structures combining biodegradable substrate with protective coatings and magnetic stripe elements. This composite approach ensures the card maintains necessary durability and functionality during its service life while the biodegradable nature of the base material ensures environmental compatibility after disposal.
2Object-affected harmful factors
If biodegradable materials are used for cards, then environmental harm is reduced, but durability and production cost are worsened
Solution Approach 1:
The patent modifies the physical and chemical parameters of biodegradable materials through treatments and coatings that enhance their mechanical properties. This allows the card to withstand regular handling and use conditions while maintaining its biodegradable characteristic for environmental compatibility.
Solution Approach 2:
The patent applies protective coatings and laminates to biodegradable card substrates before they are put into service. This beforehand protection cushioning ensures the card achieves necessary durability for its intended lifespan without compromising its eventual biodegradability, as the protective layers are designed to wear off or detach during natural decomposition.
3Duration of action of stationary object
If conventional non-biodegradable materials are used, then card durability is improved, but disposal environmental impact worsens
Solution Approach 1:
The patent changes the temporal parameter of material persistence by selecting biodegradable substrates that maintain structural integrity throughout the card's service life but subsequently decompose after disposal. This parameter change resolves the contradiction between adequate service duration and minimal disposal impact.
Solution Approach 2:
The patent extracts the non-biodegradable component from the card structure, retaining only the essential functional elements (magnetic stripe, chip, printing) while using biodegradable substrate materials. This extraction eliminates the persistent environmental harm associated with conventional card materials while maintaining necessary service life.
Data Source
AI summary
Example embodiments of biodegradable cards and systems and methods making the same are provided. A biodegradable card can comprise a biodegradable substrate, a magnetic particle slot within the biodegradable substrate configured to receive magnetic particles, a high coercivity magnetic stripe comprising magnetic particles printed on the biodegradable substrate and encoded with payment account data, and a biodegradable water resistant coating, wherein the coating covers at least the magnetic stripe.