Self-Folding Flexible Packages via Energy-Activated Material
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Solution Overview
Problem
Conventional mechanical processes for forming flexible packages are limited by speed and flexibility, leading to wear issues and restrictive design capabilities, resulting in slower packaging lines and aesthetically unappealing, less functional products.
Innovation Solution
The implementation of energy-activated self-folding technology, which applies energy sources like light, heat, or microwaves to flexible materials without direct contact, enabling faster and more complex package designs with self-folds that retain shape and enhance functionality and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical machine elements are used to perform folding and sealing operations, then the processes are consistently reliable, but the speed is limited and machine elements are prone to wear
Solution Approach 1:
The patent replaces mechanical machine elements with energy fields (microwave, radio frequency, infrared, or combination thereof) to perform folding and sealing operations. This substitution eliminates mechanical contact, thereby removing wear issues and enabling higher packaging line speeds while maintaining process reliability through consistent energy field application.
Solution Approach 2:
The packaging material itself performs the folding action when exposed to energy fields, rather than requiring external mechanical force. The energy fields activate self-folding properties in the material, allowing it to fold and seal automatically without mechanical intervention, thus eliminating machine element wear and increasing operational speed.
2Reliability
If mechanical machine elements are used for converting processes, then the operations are consistently reliable, but the flexibility and design complexity are limited
Solution Approach 1:
By replacing mechanical systems with energy fields, the patent enables complex package designs that were previously impossible with mechanical constraints. Energy fields can be precisely controlled and directed to create intricate folding patterns and designs without the physical limitations of mechanical tooling, thereby increasing design flexibility while maintaining process consistency.
Solution Approach 2:
The patent introduces dynamic control of energy field parameters (intensity, duration, distribution) to accommodate varying package designs. This dynamic adjustment capability allows the same system to handle diverse package configurations without requiring mechanical retooling, enhancing adaptability while preserving operational reliability.
3Ease of manufacture
If mechanical machine elements are used for folding operations, then the process is simple to implement, but the machine elements are prone to wear and require maintenance
Solution Approach 1:
The patent substitutes mechanical folding elements with energy field-based systems that have no moving parts or physical contact points. This eliminates wear and maintenance requirements entirely, as energy fields (microwave, RF, infrared) do not degrade through use. The system maintains simplicity through direct energy application to the material without complex mechanical assemblies.
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 allows for faster and more flexible packaging processes, enabling the creation of complex, functional, and aesthetically appealing flexible packages with self-folds that maintain their shape, overcoming the limitations of traditional mechanical methods.
Implementation Method 1
Energy sources (e.g. by light, heat, microwaves or a combination thereof) can be applied to the flexible material without contact (e.g. by convection and/or radiation)
Implementation Method 2
Energy activated self-folding can transform flexible materials by using energy sources applied to flexible materials without contact
Data Source
AI summary
Packages made from flexible material, wherein the packages include one or more self-folds formed by applying activation energy to the flexible material are presented. The packages include a polymeric film, wherein the polymeric film is formed from one type of polymer, and wherein the flexible material defines an enclosed product volume. The packages include a first panel formed from the flexible material and a second panel formed from the flexible material. The packages include a self-fold that has an overall thickness that is about 5% to about 30% greater than a thickness of the flexible material outside of the self-fold. The self-fold has a differential thermal-mechanical set than the flexible material outside of the self-fold, and forms an angle of about 100 degrees to about 170 degrees between the first panel and the second panel.