Shrinkable Biopolymer Fiber Sensor for Product Authentication
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Solution Overview
Problem
Current anti-counterfeiting technologies are partially ineffective, expensive, and unwieldy for practical use in determining the authenticity of products, and existing moisture sensors are either toxic or costly, failing to provide a user-friendly and inexpensive solution for detecting the presence of solvents.
Innovation Solution
The use of a shrinkable biopolymer fiber as a sensor that shrinks upon contact with a solvent, allowing for the determination of product authenticity and the presence of moisture through observable length changes, which can be integrated into products or packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional anti-counterfeiting technologies (RFID tags, electronic article surveillance tags, encrypted micro-particles) are used, then product authentication capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent uses disposable, inexpensive biopolymer fibers with inherent shrinkage properties as authentication elements. These fibers are integrated into packaging or products as simple tags or labels that provide authentication through their physical response to moisture, eliminating the need for complex electronic systems while maintaining reliability.
Solution Approach 2:
The patent replaces complex electronic authentication systems with a simple mechanical/physical system based on the biopolymer fiber's shrinkage response to moisture. The fiber's inherent material property provides the authentication mechanism, substituting electronic complexity with a straightforward physical phenomenon that is easy to implement and observe.
2Reliability
If conventional moisture sensors (cobalt chloride blended silica-gel) are used, then moisture detection capability is improved, but toxicity and cost increase
Solution Approach 1:
The patent uses inexpensive biopolymer fibers as disposable moisture indicators that change their physical state (shrinkage) in response to moisture. These fibers are non-toxic, biodegradable, and provide sufficient detection capability for packaging applications without the health risks associated with conventional sensors.
Solution Approach 2:
The patent employs biopolymer fibers composed of natural materials (such as starch, cellulose, or protein-based polymers) that inherently respond to moisture through shrinkage. These composite material structures provide both the detection function and the non-toxic, environmentally friendly properties required for safe consumer product integration.
3Reliability
If conventional moisture sensors are used, then moisture detection capability is improved, but cost increases
Solution Approach 1:
The patent utilizes low-cost biopolymer fibers that can be mass-produced through established textile and polymer processing methods. These fibers serve as disposable indicators integrated into packaging, providing moisture detection capability at a fraction of the cost of conventional electronic or chemical sensors while maintaining sufficient reliability for the application.
Solution Approach 2:
The biopolymer fibers provide self-indicating moisture detection through their inherent shrinkage property, eliminating the need for additional power sources, electronics, or complex readout systems. The fibers automatically respond to moisture presence through their physical change, providing a cost-effective, maintenance-free solution that integrates seamlessly into packaging manufacturing.
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
This approach provides an effective, inexpensive, and user-friendly method for authenticating products and detecting moisture, offering a practical solution to counterfeiting and quality control issues by utilizing biopolymer fibers that exhibit significant shrinkage upon solvent contact.
Implementation Method 1
a shrinkable biopolymer fiber as sensor... shrinks upon contact with a solvent... observable length changes
Data Source
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AI summary
The present invention relates to the use of a shrinkable biopolymer fiber as sensor. In a first embodiment, the sensor allows to determine the authenticity of a product. In a second embodiment, the sensor allows to determine the presence of a solvent. Further, the present invention relates to a method for determining the authenticity of a product. Furthermore, the present invention relates to a method for determining the presence of a solvent. In addition, the present invention relates to the use of a shrinkable biopolymer fiber for shaping an object. Moreover, the present invention relates to a method for shaping an object. Moreover, the present invention relates to the use of a shrinkable biopolymer fiber as suture material or wound dressing.