Packaging Material With Perforated Coating For Moisture Management
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Solution Overview
Problem
Conventional packaging materials for food products often suffer from moisture accumulation, leading to sogginess and spoilage due to the inability to effectively absorb moisture vapor, which results in undesirable freshness and texture of the stored items.
Innovation Solution
The packaging material incorporates absorption features such as partial cuts or perforations on its surface, allowing moisture and moisture vapor to penetrate and be absorbed by the base layer, specifically designed to manage moisture absorption and prevent surface moisture from engaging the food product.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional packaging materials are used without absorption features, then the packaging structure remains simple and intact, but moisture accumulates on the surface leading to sogginess and spoilage
Solution Approach 1:
The packaging material incorporates porous absorption features (perforations, partial cuts, or apertures) in the coating layer that allow moisture vapor to pass through and be absorbed by the base layer, transforming the non-porous conventional coating into a moisture-managing porous structure
Solution Approach 2:
The invention extracts the moisture absorption function from the base layer and implements it through dedicated absorption features in the coating layer, separating the barrier function (coating) from the absorption function (features leading to base layer)
2Quantity of substance
If the coating layer is made continuous and intact, then moisture barrier is maintained, but moisture vapor cannot reach the base layer for absorption
Solution Approach 1:
The continuous coating layer is segmented by creating periodic perforations, partial cuts, or apertures that divide the intact barrier into sections, allowing moisture vapor to pass through specific pathways while maintaining barrier integrity in other areas
Solution Approach 2:
The coating layer transitions from having uniform barrier properties throughout to having localized absorption features with different properties - the majority remains as moisture barrier while specific localized areas (perforations) allow moisture transmission to the base layer
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 solution significantly enhances the freshness and crunchiness of food products by increasing moisture absorption capacity, with exemplary embodiments showing a 13% and 3% increase in moisture absorption compared to control samples without absorption features, effectively maintaining the quality of stored items.
Implementation Method 1
absorption features such as partial cuts or perforations on its surface, allowing moisture and moisture vapor to penetrate and be absorbed by the base layer
Implementation Method 2
absorbent base layer... allowing moisture and moisture vapor to penetrate and be absorbed by the base layer
Data Source
Figure 1~1A
Figure 2A~2D
Figure 3
AI summary
A packaging material for forming a construct for holding a food product. The packaging material can comprise at least a base layer and a coating on a face of the base layer. Absorption features can extend in at least one of the coating and the base layer for allowing fluids to pass to an interior of the base layer.