Moist Product Packaging Seal Integrity
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Solution Overview
Problem
Existing packaging methods for moist products, such as cream cheese, fail to provide a drop-tight closure, leading to potential leakage and uncertainty about the integrity of the packaging, as they do not ensure that the product has not been opened by unauthorized persons before purchase.
Innovation Solution
The method involves folding packaging material sections over the product's upper side and end face regions to create multiple sealing regions, ensuring a complete seal by overlapping and sealing these regions with each other, preventing moisture leakage and ensuring the packaging can only be opened by destruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If packaging material is applied by folding processes only to the outer surfaces of a product without sealing, then the packaging procedure is simple and economic, but the packaging is not drop-tight and cannot prevent unauthorized opening
Solution Approach 1:
The packaging method divides the sealing process into three distinct sealing regions: a first sealing region where packaging material sections are sealed to each other, a second sealing region where material is sealed to the product, and a third sealing region providing additional sealing. This segmentation allows each region to perform its specific function while collectively achieving complete drop-tight sealing and product protection.
2Reliability
If multiple sealing regions are created to ensure drop-tight packaging, then packaging integrity is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The method combines multiple sealing operations into a unified packaging process where the packaging material itself serves as both the container and the sealing element. The three sealing regions are created by folding and sealing the same continuous packaging material in different locations, merging the container formation and sealing functions into a single integrated process rather than requiring separate container and seal components.
Data Source
AI summary
A method of packaging products, in particular moist products, wherein an areal packaging material is positioned at the outer surfaces of a product while forming fold lines such that the product is completely surrounded by packaging material. The packaging material is first folded adjacent to a lower side region while forming side surface regions and end face regions such that a container open at one side is formed. Sections of the packaging material that project beyond the rim of the container open at one side in the regions of mutually oppositely disposed product side surfaces are folded so far over one another while covering the product upper side of the product until they contact one another in order then to be sealed with one another in a first sealing region. In a second and third sealing region, sections of the packaging material which project outwardly from the product in the region of mutually oppositely disposed end face regions are sealed with such regions of the packaging material which project outwardly from the product from the upper side region and from the side surface regions of the packaging material.