Ovenable Package Header Removal Preserves Hermetic Seal
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Solution Overview
Problem
Current ovenable or cook-in packages face issues such as occluded content visibility, flammability risks, and increased costs due to paperboard components, which hinder user convenience and safety during cooking.
Innovation Solution
An ovenable package design featuring an information-laden header portion with a line of weakness, allowing it to be removably connected to a product portion with a hermetic seal, maintaining seal integrity and providing clear product visibility without the need for paperboard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a paperboard portion is used to provide printed information, then information display is improved, but content visibility is occluded and fire safety deteriorates
Solution Approach 1:
The package is divided into distinct functional zones: a header portion for information display and a product portion for containing the food product. This segmentation allows the information-bearing header to be separated from the cooking area, eliminating fire hazards while preserving information accessibility.
Solution Approach 2:
The paperboard-like information display function is extracted from the cooking area and placed in a removable header portion that can be detached before cooking. This extraction removes the fire hazard from the heating zone while maintaining information availability.
2Loss of information
If a paperboard portion is used to provide printed information, then information display is improved, but package cost increases
Solution Approach 1:
The header and product portion are constructed from the same or similar film material, eliminating the need for separate paperboard components. This material homogeneity reduces packaging complexity and cost while maintaining the information display function through printed indicia on the film surface.
3Object-affected harmful factors
If the information-laden header portion is removably connected to the product portion, then fire safety is improved and content visibility is improved, but the hermetic seal may be compromised
Solution Approach 1:
A line of weakness is pre-formed in the header portion to guide the separation process. This preliminary structural feature ensures that when the header is removed, the force is directed along the intended path rather than concentrating on the hermetic seal, thereby protecting seal integrity during the removal action.
Solution Approach 2:
The line of weakness acts as a predetermined failure point that absorbs and directs removal forces away from critical structures. By providing this weak point in advance, the design cushions the hermetic seal from the stresses of header removal, preventing accidental seal breakage.
Data Source
AI summary
Described are ovenable or cook-in packages that maintain a hermetic seal. The packages include an information-laden header portion, a product portion that includes the hermetic seal and a line of weakness. The information-laden header portion is removably connected to the product portion by the line of weakness. The hermetic seal is maintained after the information-laden header portion is removed from the product portion.