Superheated Steam Labeling System for Shrink Film
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Solution Overview
Problem
Current methods for shrink labeling in the Consumer Packaged Goods industry face issues with hot-air processes causing label distortion and high capital costs, while boiler steam processes result in stickiness, residual water, and energy inefficiency.
Innovation Solution
An energy-efficient steam generation system that produces superheated steam at temperatures over 100°C, which is projected into a containment area to shrink-fit labels onto items, eliminating the need for boilers and reducing energy consumption by up to 50-95%.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If hot-air process is used for shrink labeling, then capital cost is reduced, but label distortion occurs and production speed decreases
Solution Approach 1:
The patent changes the thermal parameters by using superheated steam at temperatures above 100°C (preferably 110-500°C, possibly up to 1000°C) instead of conventional hot air or boiler steam. This parameter change enables rapid label shrinkage (less than 1 second residence time) while avoiding label distortion, resolving the contradiction between capital cost and manufacturing precision
Solution Approach 2:
The patent utilizes the phase transition of water to superheated steam as the heating medium. By projecting superheated steam into a containment area, the system achieves rapid heat transfer to shrink labels without the negative effects of conventional methods. The steam condenses on the labels providing efficient heat transfer, then is removed by exhaust, eliminating residual water and stickiness problems
2Manufacturing precision
If boiler steam process is used for shrink labeling, then label quality is improved, but energy consumption increases and capital cost increases
Solution Approach 1:
The patent extracts the essential function of steam heating while removing the energy-inefficient boiler infrastructure. By using a compact steam generator that produces superheated steam directly at the labeling station, the system eliminates the need for hot piping and long steam runs, reducing energy loss and consumption while maintaining label quality
Solution Approach 2:
The patent replaces expensive, complex boiler systems with a simpler, more economical steam generation apparatus. The system uses a compact steam generator with no certifications required, eliminating the need for specialized nozzles and hot piping infrastructure, thereby reducing both capital cost and ongoing energy consumption
3Manufacturing precision
If boiler steam process is used for shrink labeling, then label quality is improved, but system complexity and capital requirements increase
Solution Approach 1:
The patent extracts the labeling function from the complex boiler system infrastructure. By using a standalone steam generator that produces superheated steam on-demand, the system eliminates boilers, certifications, specialized nozzles, and extensive piping, dramatically reducing system complexity while maintaining label quality
Solution Approach 2:
The steam generator is positioned adjacent to the label shrinkage machine and produces steam on-demand directly where needed. The system self-regulates steam production based on operational needs, eliminating the need for centralized boiler systems and complex distribution networks
4Productivity
If traditional steam generation is used, then continuous operation is possible, but energy efficiency decreases
Solution Approach 1:
The steam generator operates continuously adjacent to the labeling machine, producing superheated steam on-demand. The system maintains continuous useful action by immediately utilizing generated steam for label shrinkage without energy-intensive storage or long-distance piping, achieving both continuous operation and high energy efficiency
Solution Approach 2:
The patent segments the steam generation function from the traditional centralized boiler system. By placing compact steam generators at or near the labeling stations, the system enables continuous operation with localized steam production, eliminating energy losses associated with centralized distribution networks
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 system achieves high label quality with increased production speed, reduced capital costs, and no need for boiler certifications, allowing for flexible installation and operation, while providing antimicrobial properties and water savings.
Implementation Method 1
steam is generated and then superheated to a level over 100° C. A preferable temperature may be about 110-500° C. and, possibly, up to 1000° C.
Implementation Method 2
The superheated steam is then projected into an enclosed area such as a container or a tunnel wherein bottles or other packaging are to be held
Implementation Method 3
The superheated steam is then projected into an enclosed area such as a container or a tunnel wherein bottles or other packaging are to be held
Implementation Method 4
steam is generated and then superheated
Implementation Method 5
steam is generated and then superheated to a level over 100° C
Data Source
AI summary
An apparatus and method for the application of labels to packaging employing the application of superheated steam or other fluids in an enclosed space at atmospheric pressure are presented. Such an apparatus and method will more effectively, efficiently and safely attach shrink labeling to consumer packaged goods (CPG) with enhanced time, water and energy savings.