Wound Package Construct with Partial Cover Strip for Dough
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Solution Overview
Problem
Conventional wound cardboard can packaging for refrigerated dough products faces challenges in providing adequate venting, preventing gas and moisture passage, and offering cost-effective, easy opening mechanisms while maintaining structural integrity during storage and distribution.
Innovation Solution
A wound package construct comprising adhesively bonded liner, bodystock, and cover strips, where the cover strip covers only the spiral seam and not the entire outer surface of the bodystock layer, allowing for secure sealing and easy opening by peeling or applying pressure to disrupt the seam, with optional additional layers for labeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cover strip covers the entire outer surface of the bodystock layer, then sealing performance is improved, but ease of opening deteriorates
Solution Approach 1:
The cover strip is segmented to cover only the spiral seam area rather than the entire bodystock surface. This partial coverage creates a designed weak point that allows easy opening while maintaining sealing integrity over the remaining surface area.
Solution Approach 2:
The cover strip provides enhanced coverage and sealing at the critical spiral seam location while leaving other areas of the bodystock exposed. This local quality differentiation allows the seam to be sealed against pressure while enabling easy penetration at the same location for opening.
2Ease of operation
If the package is designed for easy opening, then ease of operation is improved, but structural integrity deteriorates
Solution Approach 1:
The package structure is segmented into a strong bodystock layer and a separate cover strip layer. The cover strip is positioned only at the spiral seam where it provides both structural support and a controlled opening path, allowing easy opening without compromising overall structural integrity.
Solution Approach 2:
The cover strip acts as an intermediary element between the bodystock and the opening mechanism. It provides a controlled interface that allows easy opening through the spiral seam while the bodystock maintains its structural integrity elsewhere.
3Reliability
If the cover strip width is increased to cover more surface area, then sealing performance is improved, but device complexity increases
Solution Approach 1:
The cover strip applies partial action by covering only the essential spiral seam area rather than the entire bodystock surface. This partial coverage is sufficient for sealing purposes while simplifying the overall device configuration and reducing material usage.
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 package construct ensures stable storage and transport of refrigerated dough products, allows for quick and easy opening without dough deformation, and maintains structural integrity under pressure, enhancing the shelf life and convenience of packaged dough products.
Implementation Method 1
The cover strip is secured to the outer surface of the wound bodystock layer with cover adhesive
Implementation Method 2
Leavening agent in the dough produces carbon dioxide, causing the dough to proof within the container. The proofing expands the dough to fill the interior space of the package.
Implementation Method 3
Dough that becomes pressed into the ends of the can will act as caulk, converting the vented ends into a gas-tight closure
Data Source
AI summary
A wound package construct includes a first wound strip of package material that establishes an inner liner layer, a second wound strip of material that establishes an intermediate bodystock layer, and a third wound strip of material or cover strip that covers a seam formed by the wound bodystock layer but that does not cover all of the outer surface area of the wound bodystock layer. Therefore, the width of the cover strip is less than the width of the bodystock strip. As a result, the cover strip is not wide enough to cover the entire outer surface of the wound bodystock layer such that, after the cover strip is wrapped to cover the spiral bodystock seam, areas of the bodystock layer remain exposed between the two opposed length-wise edges of the cover strip.