Bamboo Laminate Transaction Card Composite Structure
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Solution Overview
Problem
Conventional transaction cards made from non-recyclable and unsustainable materials like PVC and styrene pose environmental concerns due to limited availability and resource usage, necessitating a durable yet eco-friendly alternative.
Innovation Solution
Transaction cards are manufactured using bamboo materials, with raw bamboo sheets or assemblies adhered to paper backers or core substrates, and optionally coated with protective layers, to create a durable and aesthetically unique card that meets ISO specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional plastics (PVC, styrene) are used for transaction cards, then durability is achieved, but sustainability and recyclability deteriorate
Solution Approach 1:
The patent applies composite materials by combining bamboo layers with paper backer and protective coatings to create a transaction card that achieves durability comparable to plastics while being environmentally sustainable and recyclable. The multi-layer composite structure integrates the strength of bamboo with the protective properties of coatings.
2Object-affected harmful factors
If bamboo materials are used for transaction cards, then sustainability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the card into distinct functional layers: bamboo layers for structural integrity, paper backer for stability, and protective coatings for durability. This segmentation allows each layer to be optimized independently and simplifies the manufacturing process by enabling separate production and assembly of components.
Solution Approach 2:
The patent uses composite materials to combine bamboo with paper and protective coatings, creating a multi-layer structure that maintains sustainability while managing manufacturing complexity through standardized layer integration processes.
3Strength
If multiple bamboo layers are assembled, then durability is enhanced, but manufacturing complexity increases
Solution Approach 1:
The patent divides the card structure into multiple bamboo layers with different orientations (parallel and perpendicular grain patterns) to enhance durability through layered construction. This segmentation allows each layer to contribute specific mechanical properties while maintaining manageable manufacturing processes through systematic assembly.
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 bamboo-based cards offer enhanced durability and sustainability while minimizing environmental impact, providing a recyclable and aesthetically appealing option for various transaction and identification purposes.
Implementation Method 1
a first adhesive layer 108a bonds the bamboo sheet 102a to the paper backer 106a; a second adhesive layer 108b bonds the second bamboo sheet 102b to the other major surface of the core substrate 104
Implementation Method 2
a first protective laminate layer 110a is applied to the front surface 101a of the card 100; a second protective laminate layer 110b is applied to the back surface 101b of the card 100
Data Source
AI summary
Transaction and identification cards formed from raw bamboo assemblies including one or more raw bamboo layers optionally adhered to a paper backer. In one embodiment, a single raw bamboo assembly is adhered to a base or core substrate. Optionally, a second bamboo assembly is coupled to the first bamboo assembly, with or without a core layer sandwiched in between the bamboo assemblies, such that the card's top face includes a first bamboo layer and the card's bottom face includes a second bamboo layer. One or more image or graphic layers are then either printed directly onto the raw bamboo layer or laminated thereto. Optional protective substrates, films, or coatings are applied to or over the bamboo assembly to protect by sandwiching the one or more ink or printed layers between the protective layer and the raw bamboo layers.