Heat-Shrinkable Film Labeling for Object Identification
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Solution Overview
Problem
Opaque heat-shrink packaging makes it difficult to identify objects within the packages without breaking the film, which is problematic especially when many different types of objects are packaged together in a continuous flow.
Innovation Solution
A method involving coupling a label with an identifier to the heat-shrinkable package before the heat-shrink process, where the label remains substantially undeformed and readable after the shrinkage, allowing for human- and/or machine-readable information to be retained, using techniques such as adhesive labels, electromagnetic field identifiers, or labels printed directly onto the film.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If opaque heat-shrink packaging is used, then object identification is hindered, but packaging security and protection are improved
Solution Approach 1:
A label is introduced as an intermediary element between the opaque packaging and the observer. The label contains identification information and is coupled to the packaging, serving as a mediator that provides object identification while the opaque film maintains security and protection.
Solution Approach 2:
The packaging system is segmented into distinct functional components: the opaque heat-shrink film for security and protection, and the label for identification. This segmentation allows each component to perform its specific function without interfering with the other.
2Loss of information
If labeling is applied immediately after object placement, then identification is available, but the heat-shrink process causes label deformation and illegibility
Solution Approach 1:
The label is coupled to the packaging before the heat-shrink process. This preliminary action allows the label to be positioned and secured in advance, and the heat-shrink process is then performed to form the final packaging. The label is designed to withstand the heat-shrink process without deformation.
Solution Approach 2:
The label is designed with specific physical parameters (material properties, thickness, flexibility) that allow it to maintain its integrity and legibility during the heat-shrink process. The label's physical parameters are optimized to resist deformation while still allowing the film to shrink properly.
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
Enables the identification of objects within heat-shrunk packages without breaking the film, improving inventory management and shipping processes by maintaining legibility of the identifier post-shrinkage.
Implementation Method 1
causing the heat-shrinkable film to shrink into heat-shrunk film
Implementation Method 2
coupling the label to the heat-shrinkable package
Data Source
AI summary
An object can be heat-shrinkable packaged by placing an object inside of heat-shrinkable film, sealing the heat-shrinkable film around the object to form a heat-shrinkable package, coupling a first portion of a label to the heat-shrinkable package, and causing the heat-shrinkable film to shrink into heat-shrunk film and the heat-shrinkable package to form into a heat-shrunk package. The label includes an identifier on a second portion of the label. The label remains coupled to the heat-shrunk film after the heat-shrinkable film is caused to shrink into heat-shrunk film. The second portion of the label remains substantially undeformed after the heat-shrinkable film is caused to shrink into heat-shrunk film.